From cf40450be5b45adb413b20a4a6b46e30099ff9f7 Mon Sep 17 00:00:00 2001
From: Will Feng <yfeng.us@gmail.com>
Date: Fri, 13 Mar 2026 16:54:55 -0700
Subject: [PATCH 1/5] Add per-shape config dispatch pattern to all Helion
 submissions

- Use SHAPE_CONFIGS dict mapping shape tuples to helion.Config objects
- Factory pattern with _make_kernel() creates separate kernel instances per config
- All test and benchmark shapes from task.yml listed in SHAPE_CONFIGS
- Test shapes: TODO to replace with default config or any config that passes correctness
- Benchmark shapes: TODO to replace with autotuned config

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 .../helion/causal_conv1d_py/submission.py     | 101 +++++++++------
 problems/helion/fp8_quant_py/submission.py    |  99 +++++++-------
 .../submission.py                             | 119 ++++++++++-------
 .../submission.py                             | 109 +++++++++-------
 .../submission.py                             | 121 +++++++++++-------
 problems/helion/template.py                   |  26 ++++
 6 files changed, 353 insertions(+), 222 deletions(-)

diff --git a/problems/helion/causal_conv1d_py/submission.py b/problems/helion/causal_conv1d_py/submission.py
index 32037a94..53060a80 100644
--- a/problems/helion/causal_conv1d_py/submission.py
+++ b/problems/helion/causal_conv1d_py/submission.py
@@ -5,49 +5,72 @@
 import helion.language as hl
 
 
+# Per-shape configs: map (B, D, S, W) to optimized helion.Config objects.
+# Autotune locally for each shape, then paste the best config here.
+SHAPE_CONFIGS: dict[tuple, helion.Config] = {
+    # Test shapes
+    (1, 64, 64, 4): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (2, 128, 128, 4): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (1, 256, 256, 3): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (1, 128, 64, 8): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (4, 64, 128, 4): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    # Benchmark shapes
+    (1, 768, 512, 4): helion.Config(...),  # TODO: replace with your autotuned config
+    (1, 768, 2048, 4): helion.Config(...),  # TODO: replace with your autotuned config
+    (1, 1536, 2048, 4): helion.Config(...),  # TODO: replace with your autotuned config
+    (1, 2560, 2048, 4): helion.Config(...),  # TODO: replace with your autotuned config
+    (1, 2560, 4096, 4): helion.Config(...),  # TODO: replace with your autotuned config
+}
+
+
 # NOTE: This is an intentionally inefficient baseline implementation.
-@helion.kernel(
-    static_shapes=True,
-    config=helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),
-)
-def conv1d_kernel(
-    x_pad: torch.Tensor,  # (B, D, L) zero-padded input
-    w: torch.Tensor,      # (D, W) filter coefficients
-    b: torch.Tensor,      # (D,) additive offset
-) -> torch.Tensor:
-    B = x_pad.size(0)
-    D = x_pad.size(1)
-    L = x_pad.size(2)
-    W = hl.specialize(w.size(1))
-    N = L - W + 1
-
-    y = torch.empty(B, D, N, dtype=x_pad.dtype, device=x_pad.device)
-
-    for rb, rd, rs in hl.tile([B, D, N], block_size=[1, None, None]):
-        bi = rb.begin
-        acc1 = hl.zeros([rd, rs], dtype=torch.float32)
-        acc2 = hl.zeros([rd, rs], dtype=torch.float32)
-        acc3 = hl.zeros([rd, rs], dtype=torch.float32)
-        for j in range(W):
-            c1 = w[rd, j].to(torch.float32)
-            x1 = hl.load(x_pad, [bi, rd, rs.index + j]).to(torch.float32)
-            acc1 = acc1 + x1 * c1[:, None]
-            c2 = w[rd, j].to(torch.float32)
-            x2 = hl.load(x_pad, [bi, rd, rs.index + j]).to(torch.float32)
-            acc2 = acc2 + x2 * c2[:, None]
-            c3 = w[rd, j].to(torch.float32)
-            x3 = hl.load(x_pad, [bi, rd, rs.index + j]).to(torch.float32)
-            acc3 = acc3 + x3 * c3[:, None]
-        acc = (acc1 + acc2 + acc3) / 3.0
-        acc = acc + b[rd].to(torch.float32)[:, None]
-        y[rb, rd, rs] = acc[None, :, :].to(y.dtype)
-
-    return y
+def _make_kernel(config: helion.Config):
+    @helion.kernel(static_shapes=True, config=config)
+    def conv1d_kernel(
+        x_pad: torch.Tensor,  # (B, D, L) zero-padded input
+        w: torch.Tensor,      # (D, W) filter coefficients
+        b: torch.Tensor,      # (D,) additive offset
+    ) -> torch.Tensor:
+        B = x_pad.size(0)
+        D = x_pad.size(1)
+        L = x_pad.size(2)
+        W = hl.specialize(w.size(1))
+        N = L - W + 1
+
+        y = torch.empty(B, D, N, dtype=x_pad.dtype, device=x_pad.device)
+
+        for rb, rd, rs in hl.tile([B, D, N], block_size=[1, None, None]):
+            bi = rb.begin
+            acc1 = hl.zeros([rd, rs], dtype=torch.float32)
+            acc2 = hl.zeros([rd, rs], dtype=torch.float32)
+            acc3 = hl.zeros([rd, rs], dtype=torch.float32)
+            for j in range(W):
+                c1 = w[rd, j].to(torch.float32)
+                x1 = hl.load(x_pad, [bi, rd, rs.index + j]).to(torch.float32)
+                acc1 = acc1 + x1 * c1[:, None]
+                c2 = w[rd, j].to(torch.float32)
+                x2 = hl.load(x_pad, [bi, rd, rs.index + j]).to(torch.float32)
+                acc2 = acc2 + x2 * c2[:, None]
+                c3 = w[rd, j].to(torch.float32)
+                x3 = hl.load(x_pad, [bi, rd, rs.index + j]).to(torch.float32)
+                acc3 = acc3 + x3 * c3[:, None]
+            acc = (acc1 + acc2 + acc3) / 3.0
+            acc = acc + b[rd].to(torch.float32)[:, None]
+            y[rb, rd, rs] = acc[None, :, :].to(y.dtype)
+
+        return y
+
+    return conv1d_kernel
+
+
+_KERNELS = {shape: _make_kernel(cfg) for shape, cfg in SHAPE_CONFIGS.items()}
 
 
 def custom_kernel(data: input_t) -> output_t:
     x, weight, bias = data
+    B, D, S = x.shape
     W = weight.shape[1]
-    pad_zeros = torch.zeros(x.shape[0], x.shape[1], W - 1, dtype=x.dtype, device=x.device)
+    kernel = _KERNELS[(B, D, S, W)]
+    pad_zeros = torch.zeros(B, D, W - 1, dtype=x.dtype, device=x.device)
     padded = torch.cat([pad_zeros, x], dim=2)
-    return conv1d_kernel(padded, weight, bias)
+    return kernel(padded, weight, bias)
diff --git a/problems/helion/fp8_quant_py/submission.py b/problems/helion/fp8_quant_py/submission.py
index e3108d51..1fc324e7 100644
--- a/problems/helion/fp8_quant_py/submission.py
+++ b/problems/helion/fp8_quant_py/submission.py
@@ -5,52 +5,63 @@
 import helion.language as hl
 from pathlib import Path
 
-COFIG_DICT={
-    "block_sizes": [1],
-    "num_warps": 1,
-    "num_stages": 1,
+
+# Per-shape configs: map (num_tokens, hidden_dim, group_size) to optimized helion.Config objects.
+# Autotune locally for each shape, then paste the best config here.
+SHAPE_CONFIGS: dict[tuple, helion.Config] = {
+    # Test shapes
+    (1, 256, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (4, 512, 128): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (16, 1024, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (1, 4096, 128): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (8, 4096, 128): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    # Benchmark shapes
+    # (1, 4096, 128) already covered above
+    (16, 4096, 128): helion.Config(...),  # TODO: replace with your autotuned config
+    (256, 4096, 128): helion.Config(...),  # TODO: replace with your autotuned config
+    (256, 8192, 128): helion.Config(...),  # TODO: replace with your autotuned config
+    (4096, 7168, 128): helion.Config(...),  # TODO: replace with your autotuned config
 }
 
-ACF_FILE = "booster_pack/fp8_group_quant_0.acf"
-if Path(ACF_FILE).exists():
-    print(f"Using ACF file: {ACF_FILE}")
-    COFIG_DICT["advanced_controls_file"] = ACF_FILE
 
 # NOTE: This is an intentionally inefficient baseline implementation.
-@helion.kernel(
-    static_shapes=True,
-    config=helion.Config(**COFIG_DICT),
-)
-def normalize_to_range(
-    data: torch.Tensor,       # [N, G] input rows
-    scales_out: torch.Tensor,  # [N] output normalization factors
-) -> torch.Tensor:
-    nrows = data.size(0)
-    ncols = hl.specialize(data.size(1))
-    MAX_VAL = 448.0
-
-    qout = torch.empty(nrows, ncols, dtype=torch.float32, device=data.device)
-
-    for rr in hl.tile(nrows):
-        row = data[rr, :].to(torch.float32)
-
-        abs1 = torch.abs(row)
-        amax1 = torch.amax(abs1, -1)
-        abs2 = torch.abs(row)
-        amax2 = torch.amax(abs2, -1)
-        abs3 = torch.abs(row)
-        amax3 = torch.amax(abs3, -1)
-        amax = (amax1 + amax2 + amax3) / 3.0
-        amax = torch.clamp(amax, min=1e-10)
-        scale = amax / MAX_VAL
-
-        q1 = row / scale[:, None]
-        q2 = row / scale[:, None]
-        q3 = row / scale[:, None]
-        qout[rr, :] = (q1 + q2 + q3) / 3.0
-        scales_out[rr] = scale
-
-    return qout
+def _make_kernel(config: helion.Config):
+    @helion.kernel(static_shapes=True, config=config)
+    def normalize_to_range(
+        data: torch.Tensor,       # [N, G] input rows
+        scales_out: torch.Tensor,  # [N] output normalization factors
+    ) -> torch.Tensor:
+        nrows = data.size(0)
+        ncols = hl.specialize(data.size(1))
+        MAX_VAL = 448.0
+
+        qout = torch.empty(nrows, ncols, dtype=torch.float32, device=data.device)
+
+        for rr in hl.tile(nrows):
+            row = data[rr, :].to(torch.float32)
+
+            abs1 = torch.abs(row)
+            amax1 = torch.amax(abs1, -1)
+            abs2 = torch.abs(row)
+            amax2 = torch.amax(abs2, -1)
+            abs3 = torch.abs(row)
+            amax3 = torch.amax(abs3, -1)
+            amax = (amax1 + amax2 + amax3) / 3.0
+            amax = torch.clamp(amax, min=1e-10)
+            scale = amax / MAX_VAL
+
+            q1 = row / scale[:, None]
+            q2 = row / scale[:, None]
+            q3 = row / scale[:, None]
+            qout[rr, :] = (q1 + q2 + q3) / 3.0
+            scales_out[rr] = scale
+
+        return qout
+
+    return normalize_to_range
+
+
+_KERNELS = {shape: _make_kernel(cfg) for shape, cfg in SHAPE_CONFIGS.items()}
 
 
 def custom_kernel(data: input_t) -> output_t:
@@ -60,10 +71,12 @@ def custom_kernel(data: input_t) -> output_t:
     gsz = H // G
     N = T * G
 
+    kernel = _KERNELS[(T, H, gsz)]
+
     flat_in = x.reshape(N, gsz)
     flat_s = x_s.reshape(N)
 
-    flat_q = normalize_to_range(flat_in, flat_s)
+    flat_q = kernel(flat_in, flat_s)
 
     x_q[...] = flat_q.reshape(T, H)
     x_s[...] = flat_s.reshape(T, G)
diff --git a/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py b/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
index 528a61cc..a24f3014 100644
--- a/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
+++ b/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
@@ -5,65 +5,88 @@
 import helion.language as hl
 
 
+# Per-shape configs: map (B, T, H, K, V) to optimized helion.Config objects.
+# Autotune locally for each shape, then paste the best config here.
+SHAPE_CONFIGS: dict[tuple, helion.Config] = {
+    # Test shapes
+    (1, 64, 2, 64, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (2, 128, 4, 64, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (1, 256, 4, 64, 128): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    # Benchmark shapes
+    (1, 64, 1, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+    (2, 512, 3, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+    (2, 1024, 3, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+    (3, 1024, 4, 100, 100): helion.Config(...),  # TODO: replace with your autotuned config
+    (4, 1024, 4, 128, 128): helion.Config(...),  # TODO: replace with your autotuned config
+    (2, 1536, 4, 128, 128): helion.Config(...),  # TODO: replace with your autotuned config
+    (4, 2048, 8, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+}
+
+
 # NOTE: This is an intentionally inefficient baseline implementation.
-@helion.kernel(
-    static_shapes=True,
-    dot_precision="ieee",
-    config=helion.Config(block_sizes=[], num_warps=1, num_stages=1),
-)
-def chunk_state_pass(
-    k: torch.Tensor,   # [B, T, H, K]
-    w: torch.Tensor,   # [B, T, H, K]
-    u: torch.Tensor,   # [B, T, H, V]
-    g: torch.Tensor,   # [B, T, H]
-) -> tuple[torch.Tensor, torch.Tensor]:
-    B, T, H, K = k.shape
-    V = u.shape[-1]
-    C = 64
-    K = hl.specialize(K)
-    V = hl.specialize(V)
+def _make_kernel(config: helion.Config):
+    @helion.kernel(static_shapes=True, dot_precision="ieee", config=config)
+    def chunk_state_pass(
+        k: torch.Tensor,   # [B, T, H, K]
+        w: torch.Tensor,   # [B, T, H, K]
+        u: torch.Tensor,   # [B, T, H, V]
+        g: torch.Tensor,   # [B, T, H]
+    ) -> tuple[torch.Tensor, torch.Tensor]:
+        B, T, H, K = k.shape
+        V = u.shape[-1]
+        C = 64
+        K = hl.specialize(K)
+        V = hl.specialize(V)
+
+        NT = (T + C - 1) // C
+        h_out = torch.empty(B, NT, H, K, V, dtype=k.dtype, device=k.device)
+        v_out = torch.empty_like(u)
 
-    NT = (T + C - 1) // C
-    h_out = torch.empty(B, NT, H, K, V, dtype=k.dtype, device=k.device)
-    v_out = torch.empty_like(u)
+        BH = B * H
 
-    BH = B * H
+        for flat, tv in hl.tile([BH, V], block_size=[1, 8]):
+            b_idx = flat.begin // H
+            h_idx = flat.begin % H
+            state = hl.zeros([K, tv], dtype=torch.float32)
 
-    for flat, tv in hl.tile([BH, V], block_size=[1, 8]):
-        b_idx = flat.begin // H
-        h_idx = flat.begin % H
-        state = hl.zeros([K, tv], dtype=torch.float32)
+            for tc in hl.tile(T, block_size=C):
+                chunk_idx = tc.begin // C
+                t_end = min(tc.begin + C, T) - 1
 
-        for tc in hl.tile(T, block_size=C):
-            chunk_idx = tc.begin // C
-            t_end = min(tc.begin + C, T) - 1
+                h_out[b_idx, chunk_idx, h_idx, :, tv] = state.to(k.dtype)
 
-            h_out[b_idx, chunk_idx, h_idx, :, tv] = state.to(k.dtype)
+                proj1 = hl.dot(
+                    w[b_idx, tc, h_idx, :], state, out_dtype=torch.float32
+                )
+                proj2 = hl.dot(
+                    w[b_idx, tc, h_idx, :], state, out_dtype=torch.float32
+                )
+                proj = (proj1 + proj2) * 0.5
+                diff = u[b_idx, tc, h_idx, tv].to(torch.float32) - proj
+                v_out[b_idx, tc, h_idx, tv] = diff.to(u.dtype)
 
-            proj1 = hl.dot(
-                w[b_idx, tc, h_idx, :], state, out_dtype=torch.float32
-            )
-            proj2 = hl.dot(
-                w[b_idx, tc, h_idx, :], state, out_dtype=torch.float32
-            )
-            proj = (proj1 + proj2) * 0.5
-            diff = u[b_idx, tc, h_idx, tv].to(torch.float32) - proj
-            v_out[b_idx, tc, h_idx, tv] = diff.to(u.dtype)
+                g_end = g[b_idx, t_end, h_idx].to(torch.float32)
+                g_t = g[b_idx, tc, h_idx].to(torch.float32)
+                valid = tc.index < T
+                alpha = torch.where(valid, torch.exp(g_end - g_t), 0.0)
+                k_adj = k[b_idx, tc, h_idx, :] * alpha[:, None]
 
-            g_end = g[b_idx, t_end, h_idx].to(torch.float32)
-            g_t = g[b_idx, tc, h_idx].to(torch.float32)
-            valid = tc.index < T
-            alpha = torch.where(valid, torch.exp(g_end - g_t), 0.0)
-            k_adj = k[b_idx, tc, h_idx, :] * alpha[:, None]
+                state = state * torch.exp(g_end)
+                upd1 = hl.dot(k_adj.T, diff, out_dtype=torch.float32)
+                upd2 = hl.dot(k_adj.T, diff, out_dtype=torch.float32)
+                state = state + (upd1 + upd2) * 0.5
 
-            state = state * torch.exp(g_end)
-            upd1 = hl.dot(k_adj.T, diff, out_dtype=torch.float32)
-            upd2 = hl.dot(k_adj.T, diff, out_dtype=torch.float32)
-            state = state + (upd1 + upd2) * 0.5
+        return h_out, v_out
 
-    return h_out, v_out
+    return chunk_state_pass
+
+
+_KERNELS = {shape: _make_kernel(cfg) for shape, cfg in SHAPE_CONFIGS.items()}
 
 
 def custom_kernel(data: input_t) -> output_t:
     k, w, u, g = data
-    return chunk_state_pass(k, w, u, g)
+    B, T, H, K = k.shape
+    V = u.shape[-1]
+    kernel = _KERNELS[(B, T, H, K, V)]
+    return kernel(k, w, u, g)
diff --git a/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py b/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
index 8e2a2f53..f90e054a 100644
--- a/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
+++ b/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
@@ -5,58 +5,81 @@
 import helion.language as hl
 
 
+# Per-shape configs: map (B, T, H, K, V) to optimized helion.Config objects.
+# Autotune locally for each shape, then paste the best config here.
+SHAPE_CONFIGS: dict[tuple, helion.Config] = {
+    # Test shapes
+    (1, 64, 2, 64, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (2, 128, 4, 64, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (1, 256, 4, 64, 128): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    # Benchmark shapes
+    (1, 64, 1, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+    (2, 512, 3, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+    (2, 1024, 3, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+    (3, 1024, 4, 100, 100): helion.Config(...),  # TODO: replace with your autotuned config
+    (4, 1024, 4, 128, 128): helion.Config(...),  # TODO: replace with your autotuned config
+    (2, 1536, 4, 128, 128): helion.Config(...),  # TODO: replace with your autotuned config
+    (4, 2048, 8, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+}
+
+
 # NOTE: This is an intentionally inefficient baseline implementation.
-@helion.kernel(
-    static_shapes=True,
-    dot_precision="ieee",
-    config=helion.Config(block_sizes=[], num_warps=1, num_stages=1),
-)
-def gated_chunk_attn(
-    q: torch.Tensor,     # [B, T, H, K]
-    k: torch.Tensor,     # [B, T, H, K]
-    v: torch.Tensor,     # [B, T, H, V]
-    h: torch.Tensor,     # [B, NT, H, K, V]
-    g: torch.Tensor,     # [B, T, H]
-    scale: float,
-) -> torch.Tensor:
-    B, T, H, K = q.shape
-    V = v.shape[-1]
-    C = 64
-    K = hl.specialize(K)
-    V = hl.specialize(V)
+def _make_kernel(config: helion.Config):
+    @helion.kernel(static_shapes=True, dot_precision="ieee", config=config)
+    def gated_chunk_attn(
+        q: torch.Tensor,     # [B, T, H, K]
+        k: torch.Tensor,     # [B, T, H, K]
+        v: torch.Tensor,     # [B, T, H, V]
+        h: torch.Tensor,     # [B, NT, H, K, V]
+        g: torch.Tensor,     # [B, T, H]
+        scale: float,
+    ) -> torch.Tensor:
+        B, T, H, K = q.shape
+        V = v.shape[-1]
+        C = 64
+        K = hl.specialize(K)
+        V = hl.specialize(V)
+
+        out = torch.empty_like(v)
 
-    out = torch.empty_like(v)
+        BH = B * H
+        for flat_bh, tile_t in hl.tile([BH, T], block_size=[1, C]):
+            b_idx = flat_bh.begin // H
+            h_idx = flat_bh.begin % H
+            c_idx = tile_t.begin // C
 
-    BH = B * H
-    for flat_bh, tile_t in hl.tile([BH, T], block_size=[1, C]):
-        b_idx = flat_bh.begin // H
-        h_idx = flat_bh.begin % H
-        c_idx = tile_t.begin // C
+            g_vals = g[b_idx, tile_t, h_idx]
+            q_s = q[b_idx, tile_t, h_idx, :] * torch.exp(g_vals)[:, None]
+            k_s = k[b_idx, tile_t, h_idx, :] * torch.exp(-g_vals)[:, None]
 
-        g_vals = g[b_idx, tile_t, h_idx]
-        q_s = q[b_idx, tile_t, h_idx, :] * torch.exp(g_vals)[:, None]
-        k_s = k[b_idx, tile_t, h_idx, :] * torch.exp(-g_vals)[:, None]
+            sim1 = hl.dot(q_s, k_s.T)
+            sim2 = hl.dot(q_s, k_s.T)
+            sim = (sim1 + sim2) * 0.5
+            idx = hl.arange(tile_t.block_size)
+            mask = idx[:, None] >= idx[None, :]
+            sim = torch.where(mask, sim, 0.0)
+            local1 = hl.dot(sim.to(v.dtype), v[b_idx, tile_t, h_idx, :])
+            local2 = hl.dot(sim.to(v.dtype), v[b_idx, tile_t, h_idx, :])
+            local_out = (local1 + local2) * 0.5
 
-        sim1 = hl.dot(q_s, k_s.T)
-        sim2 = hl.dot(q_s, k_s.T)
-        sim = (sim1 + sim2) * 0.5
-        idx = hl.arange(tile_t.block_size)
-        mask = idx[:, None] >= idx[None, :]
-        sim = torch.where(mask, sim, 0.0)
-        local1 = hl.dot(sim.to(v.dtype), v[b_idx, tile_t, h_idx, :])
-        local2 = hl.dot(sim.to(v.dtype), v[b_idx, tile_t, h_idx, :])
-        local_out = (local1 + local2) * 0.5
+            glob1 = hl.dot(q_s, h[b_idx, c_idx, h_idx, :, :])
+            glob2 = hl.dot(q_s, h[b_idx, c_idx, h_idx, :, :])
+            global_out = (glob1 + glob2) * 0.5
 
-        glob1 = hl.dot(q_s, h[b_idx, c_idx, h_idx, :, :])
-        glob2 = hl.dot(q_s, h[b_idx, c_idx, h_idx, :, :])
-        global_out = (glob1 + glob2) * 0.5
+            out[b_idx, tile_t, h_idx, :] = ((global_out + local_out) * scale).to(out.dtype)
 
-        out[b_idx, tile_t, h_idx, :] = ((global_out + local_out) * scale).to(out.dtype)
+        return out
 
-    return out
+    return gated_chunk_attn
+
+
+_KERNELS = {shape: _make_kernel(cfg) for shape, cfg in SHAPE_CONFIGS.items()}
 
 
 def custom_kernel(data: input_t) -> output_t:
     q, k, v_new, h, g = data
-    scale = q.shape[-1] ** -0.5
-    return gated_chunk_attn(q, k, v_new, h, g, scale)
+    B, T, H, K = q.shape
+    V = v_new.shape[-1]
+    scale = K ** -0.5
+    kernel = _KERNELS[(B, T, H, K, V)]
+    return kernel(q, k, v_new, h, g, scale)
diff --git a/problems/helion/gated_deltanet_recompute_w_u_py/submission.py b/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
index 918f519a..555eb02c 100644
--- a/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
+++ b/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
@@ -5,68 +5,91 @@
 import helion.language as hl
 
 
+# Per-shape configs: map (B, T, H, K, V) to optimized helion.Config objects.
+# Autotune locally for each shape, then paste the best config here.
+SHAPE_CONFIGS: dict[tuple, helion.Config] = {
+    # Test shapes
+    (1, 64, 2, 64, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (2, 128, 4, 64, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (1, 256, 4, 64, 128): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    # Benchmark shapes
+    (1, 64, 1, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+    (2, 512, 3, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+    (2, 1024, 3, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+    (3, 1024, 4, 100, 100): helion.Config(...),  # TODO: replace with your autotuned config
+    (4, 1024, 4, 128, 128): helion.Config(...),  # TODO: replace with your autotuned config
+    (2, 1536, 4, 128, 128): helion.Config(...),  # TODO: replace with your autotuned config
+    (4, 2048, 8, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+}
+
+
 # NOTE: This is an intentionally inefficient baseline implementation.
-@helion.kernel(
-    static_shapes=True,
-    dot_precision="ieee",
-    config=helion.Config(block_sizes=[], num_warps=1, num_stages=1),
-)
-def project_kv(
-    k: torch.Tensor,     # [B, T, H, K]
-    v: torch.Tensor,     # [B, T, H, V]
-    beta: torch.Tensor,  # [B, T, H]
-    A: torch.Tensor,     # [B, T, H, BT]
-    g: torch.Tensor,     # [B, T, H]
-) -> tuple[torch.Tensor, torch.Tensor]:
-    B, T, H, K = k.shape
-    V = v.shape[-1]
-    C = hl.specialize(A.shape[-1])
-    K = hl.specialize(K)
-    V = hl.specialize(V)
+def _make_kernel(config: helion.Config):
+    @helion.kernel(static_shapes=True, dot_precision="ieee", config=config)
+    def project_kv(
+        k: torch.Tensor,     # [B, T, H, K]
+        v: torch.Tensor,     # [B, T, H, V]
+        beta: torch.Tensor,  # [B, T, H]
+        A: torch.Tensor,     # [B, T, H, BT]
+        g: torch.Tensor,     # [B, T, H]
+    ) -> tuple[torch.Tensor, torch.Tensor]:
+        B, T, H, K = k.shape
+        V = v.shape[-1]
+        C = hl.specialize(A.shape[-1])
+        K = hl.specialize(K)
+        V = hl.specialize(V)
+
+        w_out = torch.empty_like(k)
+        u_out = torch.empty_like(v)
 
-    w_out = torch.empty_like(k)
-    u_out = torch.empty_like(v)
+        BH = B * H
+        for flat_bh, rt in hl.tile([BH, T], block_size=[1, C]):
+            b_idx = flat_bh.begin // H
+            h_idx = flat_bh.begin % H
 
-    BH = B * H
-    for flat_bh, rt in hl.tile([BH, T], block_size=[1, C]):
-        b_idx = flat_bh.begin // H
-        h_idx = flat_bh.begin % H
+            w_acc1 = hl.zeros([rt, K], dtype=torch.float32)
+            u_acc1 = hl.zeros([rt, V], dtype=torch.float32)
+            w_acc2 = hl.zeros([rt, K], dtype=torch.float32)
+            u_acc2 = hl.zeros([rt, V], dtype=torch.float32)
 
-        w_acc1 = hl.zeros([rt, K], dtype=torch.float32)
-        u_acc1 = hl.zeros([rt, V], dtype=torch.float32)
-        w_acc2 = hl.zeros([rt, K], dtype=torch.float32)
-        u_acc2 = hl.zeros([rt, V], dtype=torch.float32)
+            for ci in range(C):
+                t_ci = rt.begin + ci
+                a_col = A[b_idx, rt, h_idx, ci].to(torch.float32)
+                coeff_ci = beta[b_idx, t_ci, h_idx].to(torch.float32)
+                decay_ci = torch.exp(g[b_idx, t_ci, h_idx].to(torch.float32))
 
-        for ci in range(C):
-            t_ci = rt.begin + ci
-            a_col = A[b_idx, rt, h_idx, ci].to(torch.float32)
-            coeff_ci = beta[b_idx, t_ci, h_idx].to(torch.float32)
-            decay_ci = torch.exp(g[b_idx, t_ci, h_idx].to(torch.float32))
+                k_ci = k[b_idx, t_ci, h_idx, :].to(torch.float32)
+                v_ci = v[b_idx, t_ci, h_idx, :].to(torch.float32)
 
-            k_ci = k[b_idx, t_ci, h_idx, :].to(torch.float32)
-            v_ci = v[b_idx, t_ci, h_idx, :].to(torch.float32)
+                w_acc1 = w_acc1 + a_col[:, None] * (k_ci * coeff_ci * decay_ci)[None, :]
+                u_acc1 = u_acc1 + a_col[:, None] * (v_ci * coeff_ci)[None, :]
 
-            w_acc1 = w_acc1 + a_col[:, None] * (k_ci * coeff_ci * decay_ci)[None, :]
-            u_acc1 = u_acc1 + a_col[:, None] * (v_ci * coeff_ci)[None, :]
+            for ci in range(C - 1, -1, -1):
+                t_ci = rt.begin + ci
+                a_col = A[b_idx, rt, h_idx, ci].to(torch.float32)
+                coeff_ci = beta[b_idx, t_ci, h_idx].to(torch.float32)
+                decay_ci = torch.exp(g[b_idx, t_ci, h_idx].to(torch.float32))
 
-        for ci in range(C - 1, -1, -1):
-            t_ci = rt.begin + ci
-            a_col = A[b_idx, rt, h_idx, ci].to(torch.float32)
-            coeff_ci = beta[b_idx, t_ci, h_idx].to(torch.float32)
-            decay_ci = torch.exp(g[b_idx, t_ci, h_idx].to(torch.float32))
+                k_ci = k[b_idx, t_ci, h_idx, :].to(torch.float32)
+                v_ci = v[b_idx, t_ci, h_idx, :].to(torch.float32)
 
-            k_ci = k[b_idx, t_ci, h_idx, :].to(torch.float32)
-            v_ci = v[b_idx, t_ci, h_idx, :].to(torch.float32)
+                w_acc2 = w_acc2 + a_col[:, None] * (k_ci * coeff_ci * decay_ci)[None, :]
+                u_acc2 = u_acc2 + a_col[:, None] * (v_ci * coeff_ci)[None, :]
 
-            w_acc2 = w_acc2 + a_col[:, None] * (k_ci * coeff_ci * decay_ci)[None, :]
-            u_acc2 = u_acc2 + a_col[:, None] * (v_ci * coeff_ci)[None, :]
+            w_out[b_idx, rt, h_idx, :] = ((w_acc1 + w_acc2) * 0.5).to(k.dtype)
+            u_out[b_idx, rt, h_idx, :] = ((u_acc1 + u_acc2) * 0.5).to(v.dtype)
 
-        w_out[b_idx, rt, h_idx, :] = ((w_acc1 + w_acc2) * 0.5).to(k.dtype)
-        u_out[b_idx, rt, h_idx, :] = ((u_acc1 + u_acc2) * 0.5).to(v.dtype)
+        return w_out, u_out
 
-    return w_out, u_out
+    return project_kv
+
+
+_KERNELS = {shape: _make_kernel(cfg) for shape, cfg in SHAPE_CONFIGS.items()}
 
 
 def custom_kernel(data: input_t) -> output_t:
     k, v, beta, A, g = data
-    return project_kv(k, v, beta, A, g)
+    B, T, H, K = k.shape
+    V = v.shape[-1]
+    kernel = _KERNELS[(B, T, H, K, V)]
+    return kernel(k, v, beta, A, g)
diff --git a/problems/helion/template.py b/problems/helion/template.py
index 4aec6a6c..37d04820 100644
--- a/problems/helion/template.py
+++ b/problems/helion/template.py
@@ -1,5 +1,31 @@
 from task import input_t, output_t
+import torch
+import helion
+import helion.language as hl
+
+
+# Per-shape configs: map input shape tuples to optimized helion.Config objects.
+# Autotune locally for each shape, then paste the best config here.
+# Include all test and benchmark shapes from task.yml.
+SHAPE_CONFIGS: dict[tuple, helion.Config] = {
+    # (shape_dim_1, shape_dim_2, ...): helion.Config(...),  # TODO: replace with your config
+}
+
+
+def _make_kernel(config: helion.Config):
+    @helion.kernel(static_shapes=True, config=config)
+    def kernel(...) -> ...:
+        # Your Helion kernel implementation
+        ...
+
+    return kernel
+
+
+_KERNELS = {shape: _make_kernel(cfg) for shape, cfg in SHAPE_CONFIGS.items()}
 
 
 def custom_kernel(data: input_t) -> output_t:
+    # Extract shape key from input tensors to select the right kernel
+    # shape_key = (...)
+    # kernel = _KERNELS[shape_key]
     pass

From 7cce3d01ba23bafb3774b1766abf972e00086423 Mon Sep 17 00:00:00 2001
From: Will Feng <yfeng.us@gmail.com>
Date: Fri, 13 Mar 2026 17:11:35 -0700
Subject: [PATCH 2/5] Add commented-out ACF usage hint to all Helion
 submissions

Each submission now shows the matching ACF file path as a commented
example so participants know which booster pack files to try.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 problems/helion/causal_conv1d_py/submission.py               | 5 +++++
 problems/helion/fp8_quant_py/submission.py                   | 5 +++++
 problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py  | 5 +++++
 problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py  | 5 +++++
 .../helion/gated_deltanet_recompute_w_u_py/submission.py     | 5 +++++
 5 files changed, 25 insertions(+)

diff --git a/problems/helion/causal_conv1d_py/submission.py b/problems/helion/causal_conv1d_py/submission.py
index 53060a80..118874de 100644
--- a/problems/helion/causal_conv1d_py/submission.py
+++ b/problems/helion/causal_conv1d_py/submission.py
@@ -23,6 +23,11 @@
 }
 
 
+# Optional: add advanced_controls_file to your Config for extra performance (see docs).
+# Autotune with autotune_search_acf to find the best ACF, then hardcode it:
+#     helion.Config(..., advanced_controls_file="/opt/booster_pack/causal_conv_0.acf")
+
+
 # NOTE: This is an intentionally inefficient baseline implementation.
 def _make_kernel(config: helion.Config):
     @helion.kernel(static_shapes=True, config=config)
diff --git a/problems/helion/fp8_quant_py/submission.py b/problems/helion/fp8_quant_py/submission.py
index 1fc324e7..b116e205 100644
--- a/problems/helion/fp8_quant_py/submission.py
+++ b/problems/helion/fp8_quant_py/submission.py
@@ -24,6 +24,11 @@
 }
 
 
+# Optional: add advanced_controls_file to your Config for extra performance (see docs).
+# Autotune with autotune_search_acf to find the best ACF, then hardcode it:
+#     helion.Config(..., advanced_controls_file="/opt/booster_pack/fp8_group_quant_0.acf")
+
+
 # NOTE: This is an intentionally inefficient baseline implementation.
 def _make_kernel(config: helion.Config):
     @helion.kernel(static_shapes=True, config=config)
diff --git a/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py b/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
index a24f3014..c00a4945 100644
--- a/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
+++ b/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
@@ -23,6 +23,11 @@
 }
 
 
+# Optional: add advanced_controls_file to your Config for extra performance (see docs).
+# Autotune with autotune_search_acf to find the best ACF, then hardcode it:
+#     helion.Config(..., advanced_controls_file="/opt/booster_pack/chunk_fwd_h_0.acf")
+
+
 # NOTE: This is an intentionally inefficient baseline implementation.
 def _make_kernel(config: helion.Config):
     @helion.kernel(static_shapes=True, dot_precision="ieee", config=config)
diff --git a/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py b/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
index f90e054a..31c49b38 100644
--- a/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
+++ b/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
@@ -23,6 +23,11 @@
 }
 
 
+# Optional: add advanced_controls_file to your Config for extra performance (see docs).
+# Autotune with autotune_search_acf to find the best ACF, then hardcode it:
+#     helion.Config(..., advanced_controls_file="/opt/booster_pack/chunk_fwd_o_0.acf")
+
+
 # NOTE: This is an intentionally inefficient baseline implementation.
 def _make_kernel(config: helion.Config):
     @helion.kernel(static_shapes=True, dot_precision="ieee", config=config)
diff --git a/problems/helion/gated_deltanet_recompute_w_u_py/submission.py b/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
index 555eb02c..8b002a1c 100644
--- a/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
+++ b/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
@@ -23,6 +23,11 @@
 }
 
 
+# Optional: add advanced_controls_file to your Config for extra performance (see docs).
+# Autotune with autotune_search_acf to find the best ACF, then hardcode it:
+#     helion.Config(..., advanced_controls_file="/opt/booster_pack/recompute_w_u_fwd_0.acf")
+
+
 # NOTE: This is an intentionally inefficient baseline implementation.
 def _make_kernel(config: helion.Config):
     @helion.kernel(static_shapes=True, dot_precision="ieee", config=config)

From 18d7e487882a08d1ba1ab56d856b454801ab3177 Mon Sep 17 00:00:00 2001
From: Will Feng <yfeng.us@gmail.com>
Date: Fri, 13 Mar 2026 17:19:49 -0700
Subject: [PATCH 3/5] Rename inner kernel functions to 'kernel' in all
 submissions

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 problems/helion/causal_conv1d_py/submission.py                | 4 ++--
 problems/helion/fp8_quant_py/submission.py                    | 4 ++--
 problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py   | 4 ++--
 problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py   | 4 ++--
 problems/helion/gated_deltanet_recompute_w_u_py/submission.py | 4 ++--
 5 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/problems/helion/causal_conv1d_py/submission.py b/problems/helion/causal_conv1d_py/submission.py
index 118874de..ecaca557 100644
--- a/problems/helion/causal_conv1d_py/submission.py
+++ b/problems/helion/causal_conv1d_py/submission.py
@@ -31,7 +31,7 @@
 # NOTE: This is an intentionally inefficient baseline implementation.
 def _make_kernel(config: helion.Config):
     @helion.kernel(static_shapes=True, config=config)
-    def conv1d_kernel(
+    def kernel(
         x_pad: torch.Tensor,  # (B, D, L) zero-padded input
         w: torch.Tensor,      # (D, W) filter coefficients
         b: torch.Tensor,      # (D,) additive offset
@@ -65,7 +65,7 @@ def conv1d_kernel(
 
         return y
 
-    return conv1d_kernel
+    return kernel
 
 
 _KERNELS = {shape: _make_kernel(cfg) for shape, cfg in SHAPE_CONFIGS.items()}
diff --git a/problems/helion/fp8_quant_py/submission.py b/problems/helion/fp8_quant_py/submission.py
index b116e205..f5773328 100644
--- a/problems/helion/fp8_quant_py/submission.py
+++ b/problems/helion/fp8_quant_py/submission.py
@@ -32,7 +32,7 @@
 # NOTE: This is an intentionally inefficient baseline implementation.
 def _make_kernel(config: helion.Config):
     @helion.kernel(static_shapes=True, config=config)
-    def normalize_to_range(
+    def kernel(
         data: torch.Tensor,       # [N, G] input rows
         scales_out: torch.Tensor,  # [N] output normalization factors
     ) -> torch.Tensor:
@@ -63,7 +63,7 @@ def normalize_to_range(
 
         return qout
 
-    return normalize_to_range
+    return kernel
 
 
 _KERNELS = {shape: _make_kernel(cfg) for shape, cfg in SHAPE_CONFIGS.items()}
diff --git a/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py b/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
index c00a4945..d0663435 100644
--- a/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
+++ b/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
@@ -31,7 +31,7 @@
 # NOTE: This is an intentionally inefficient baseline implementation.
 def _make_kernel(config: helion.Config):
     @helion.kernel(static_shapes=True, dot_precision="ieee", config=config)
-    def chunk_state_pass(
+    def kernel(
         k: torch.Tensor,   # [B, T, H, K]
         w: torch.Tensor,   # [B, T, H, K]
         u: torch.Tensor,   # [B, T, H, V]
@@ -83,7 +83,7 @@ def chunk_state_pass(
 
         return h_out, v_out
 
-    return chunk_state_pass
+    return kernel
 
 
 _KERNELS = {shape: _make_kernel(cfg) for shape, cfg in SHAPE_CONFIGS.items()}
diff --git a/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py b/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
index 31c49b38..5fc31fec 100644
--- a/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
+++ b/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
@@ -31,7 +31,7 @@
 # NOTE: This is an intentionally inefficient baseline implementation.
 def _make_kernel(config: helion.Config):
     @helion.kernel(static_shapes=True, dot_precision="ieee", config=config)
-    def gated_chunk_attn(
+    def kernel(
         q: torch.Tensor,     # [B, T, H, K]
         k: torch.Tensor,     # [B, T, H, K]
         v: torch.Tensor,     # [B, T, H, V]
@@ -75,7 +75,7 @@ def gated_chunk_attn(
 
         return out
 
-    return gated_chunk_attn
+    return kernel
 
 
 _KERNELS = {shape: _make_kernel(cfg) for shape, cfg in SHAPE_CONFIGS.items()}
diff --git a/problems/helion/gated_deltanet_recompute_w_u_py/submission.py b/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
index 8b002a1c..73913bd2 100644
--- a/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
+++ b/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
@@ -31,7 +31,7 @@
 # NOTE: This is an intentionally inefficient baseline implementation.
 def _make_kernel(config: helion.Config):
     @helion.kernel(static_shapes=True, dot_precision="ieee", config=config)
-    def project_kv(
+    def kernel(
         k: torch.Tensor,     # [B, T, H, K]
         v: torch.Tensor,     # [B, T, H, V]
         beta: torch.Tensor,  # [B, T, H]
@@ -86,7 +86,7 @@ def project_kv(
 
         return w_out, u_out
 
-    return project_kv
+    return kernel
 
 
 _KERNELS = {shape: _make_kernel(cfg) for shape, cfg in SHAPE_CONFIGS.items()}

From 7c083310500ba679181029cac3538276f4c974cc Mon Sep 17 00:00:00 2001
From: Will Feng <yfeng.us@gmail.com>
Date: Fri, 13 Mar 2026 21:23:33 -0700
Subject: [PATCH 4/5] Replace placeholder helion.Config(...) with original
 baseline configs

---
 .../helion/causal_conv1d_py/submission.py     | 20 +++++++++----------
 problems/helion/fp8_quant_py/submission.py    | 18 ++++++++---------
 .../submission.py                             | 20 +++++++++----------
 .../submission.py                             | 20 +++++++++----------
 .../submission.py                             | 20 +++++++++----------
 5 files changed, 49 insertions(+), 49 deletions(-)

diff --git a/problems/helion/causal_conv1d_py/submission.py b/problems/helion/causal_conv1d_py/submission.py
index ecaca557..248fd31a 100644
--- a/problems/helion/causal_conv1d_py/submission.py
+++ b/problems/helion/causal_conv1d_py/submission.py
@@ -9,17 +9,17 @@
 # Autotune locally for each shape, then paste the best config here.
 SHAPE_CONFIGS: dict[tuple, helion.Config] = {
     # Test shapes
-    (1, 64, 64, 4): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (2, 128, 128, 4): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (1, 256, 256, 3): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (1, 128, 64, 8): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (4, 64, 128, 4): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (1, 64, 64, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (2, 128, 128, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (1, 256, 256, 3): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (1, 128, 64, 8): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (4, 64, 128, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
     # Benchmark shapes
-    (1, 768, 512, 4): helion.Config(...),  # TODO: replace with your autotuned config
-    (1, 768, 2048, 4): helion.Config(...),  # TODO: replace with your autotuned config
-    (1, 1536, 2048, 4): helion.Config(...),  # TODO: replace with your autotuned config
-    (1, 2560, 2048, 4): helion.Config(...),  # TODO: replace with your autotuned config
-    (1, 2560, 4096, 4): helion.Config(...),  # TODO: replace with your autotuned config
+    (1, 768, 512, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (1, 768, 2048, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (1, 1536, 2048, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (1, 2560, 2048, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (1, 2560, 4096, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
 }
 
 
diff --git a/problems/helion/fp8_quant_py/submission.py b/problems/helion/fp8_quant_py/submission.py
index f5773328..af82843a 100644
--- a/problems/helion/fp8_quant_py/submission.py
+++ b/problems/helion/fp8_quant_py/submission.py
@@ -10,17 +10,17 @@
 # Autotune locally for each shape, then paste the best config here.
 SHAPE_CONFIGS: dict[tuple, helion.Config] = {
     # Test shapes
-    (1, 256, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (4, 512, 128): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (16, 1024, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (1, 4096, 128): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (8, 4096, 128): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (1, 256, 64): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (4, 512, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (16, 1024, 64): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (1, 4096, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (8, 4096, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
     # Benchmark shapes
     # (1, 4096, 128) already covered above
-    (16, 4096, 128): helion.Config(...),  # TODO: replace with your autotuned config
-    (256, 4096, 128): helion.Config(...),  # TODO: replace with your autotuned config
-    (256, 8192, 128): helion.Config(...),  # TODO: replace with your autotuned config
-    (4096, 7168, 128): helion.Config(...),  # TODO: replace with your autotuned config
+    (16, 4096, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (256, 4096, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (256, 8192, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (4096, 7168, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
 }
 
 
diff --git a/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py b/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
index d0663435..34ca5bff 100644
--- a/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
+++ b/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
@@ -9,17 +9,17 @@
 # Autotune locally for each shape, then paste the best config here.
 SHAPE_CONFIGS: dict[tuple, helion.Config] = {
     # Test shapes
-    (1, 64, 2, 64, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (2, 128, 4, 64, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (1, 256, 4, 64, 128): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (1, 64, 2, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (2, 128, 4, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (1, 256, 4, 64, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
     # Benchmark shapes
-    (1, 64, 1, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
-    (2, 512, 3, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
-    (2, 1024, 3, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
-    (3, 1024, 4, 100, 100): helion.Config(...),  # TODO: replace with your autotuned config
-    (4, 1024, 4, 128, 128): helion.Config(...),  # TODO: replace with your autotuned config
-    (2, 1536, 4, 128, 128): helion.Config(...),  # TODO: replace with your autotuned config
-    (4, 2048, 8, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+    (1, 64, 1, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (2, 512, 3, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (2, 1024, 3, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (3, 1024, 4, 100, 100): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (4, 1024, 4, 128, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (2, 1536, 4, 128, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (4, 2048, 8, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
 }
 
 
diff --git a/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py b/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
index 5fc31fec..70c17e67 100644
--- a/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
+++ b/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
@@ -9,17 +9,17 @@
 # Autotune locally for each shape, then paste the best config here.
 SHAPE_CONFIGS: dict[tuple, helion.Config] = {
     # Test shapes
-    (1, 64, 2, 64, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (2, 128, 4, 64, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (1, 256, 4, 64, 128): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (1, 64, 2, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (2, 128, 4, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (1, 256, 4, 64, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
     # Benchmark shapes
-    (1, 64, 1, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
-    (2, 512, 3, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
-    (2, 1024, 3, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
-    (3, 1024, 4, 100, 100): helion.Config(...),  # TODO: replace with your autotuned config
-    (4, 1024, 4, 128, 128): helion.Config(...),  # TODO: replace with your autotuned config
-    (2, 1536, 4, 128, 128): helion.Config(...),  # TODO: replace with your autotuned config
-    (4, 2048, 8, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+    (1, 64, 1, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (2, 512, 3, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (2, 1024, 3, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (3, 1024, 4, 100, 100): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (4, 1024, 4, 128, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (2, 1536, 4, 128, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (4, 2048, 8, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
 }
 
 
diff --git a/problems/helion/gated_deltanet_recompute_w_u_py/submission.py b/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
index 73913bd2..f507f21e 100644
--- a/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
+++ b/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
@@ -9,17 +9,17 @@
 # Autotune locally for each shape, then paste the best config here.
 SHAPE_CONFIGS: dict[tuple, helion.Config] = {
     # Test shapes
-    (1, 64, 2, 64, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (2, 128, 4, 64, 64): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
-    (1, 256, 4, 64, 128): helion.Config(...),  # TODO: replace with default config or any config that passes correctness check
+    (1, 64, 2, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (2, 128, 4, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (1, 256, 4, 64, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
     # Benchmark shapes
-    (1, 64, 1, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
-    (2, 512, 3, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
-    (2, 1024, 3, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
-    (3, 1024, 4, 100, 100): helion.Config(...),  # TODO: replace with your autotuned config
-    (4, 1024, 4, 128, 128): helion.Config(...),  # TODO: replace with your autotuned config
-    (2, 1536, 4, 128, 128): helion.Config(...),  # TODO: replace with your autotuned config
-    (4, 2048, 8, 64, 64): helion.Config(...),  # TODO: replace with your autotuned config
+    (1, 64, 1, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (2, 512, 3, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (2, 1024, 3, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (3, 1024, 4, 100, 100): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (4, 1024, 4, 128, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (2, 1536, 4, 128, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
+    (4, 2048, 8, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
 }
 
 

From ec9d47a23a211d91318b7984af5c9613c442605f Mon Sep 17 00:00:00 2001
From: Will Feng <yfeng.us@gmail.com>
Date: Fri, 13 Mar 2026 21:30:43 -0700
Subject: [PATCH 5/5] Simplify TODO comments for test shape configs

---
 problems/helion/causal_conv1d_py/submission.py         | 10 +++++-----
 problems/helion/fp8_quant_py/submission.py             | 10 +++++-----
 .../helion/gated_deltanet_chunk_fwd_h_py/submission.py |  6 +++---
 .../helion/gated_deltanet_chunk_fwd_o_py/submission.py |  6 +++---
 .../gated_deltanet_recompute_w_u_py/submission.py      |  6 +++---
 5 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/problems/helion/causal_conv1d_py/submission.py b/problems/helion/causal_conv1d_py/submission.py
index 248fd31a..92716763 100644
--- a/problems/helion/causal_conv1d_py/submission.py
+++ b/problems/helion/causal_conv1d_py/submission.py
@@ -9,11 +9,11 @@
 # Autotune locally for each shape, then paste the best config here.
 SHAPE_CONFIGS: dict[tuple, helion.Config] = {
     # Test shapes
-    (1, 64, 64, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (2, 128, 128, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (1, 256, 256, 3): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (1, 128, 64, 8): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (4, 64, 128, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (1, 64, 64, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (2, 128, 128, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (1, 256, 256, 3): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (1, 128, 64, 8): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (4, 64, 128, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
     # Benchmark shapes
     (1, 768, 512, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
     (1, 768, 2048, 4): helion.Config(block_sizes=[1, 8], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
diff --git a/problems/helion/fp8_quant_py/submission.py b/problems/helion/fp8_quant_py/submission.py
index af82843a..4b562fa9 100644
--- a/problems/helion/fp8_quant_py/submission.py
+++ b/problems/helion/fp8_quant_py/submission.py
@@ -10,11 +10,11 @@
 # Autotune locally for each shape, then paste the best config here.
 SHAPE_CONFIGS: dict[tuple, helion.Config] = {
     # Test shapes
-    (1, 256, 64): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (4, 512, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (16, 1024, 64): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (1, 4096, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (8, 4096, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (1, 256, 64): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (4, 512, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (16, 1024, 64): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (1, 4096, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (8, 4096, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
     # Benchmark shapes
     # (1, 4096, 128) already covered above
     (16, 4096, 128): helion.Config(block_sizes=[1], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
diff --git a/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py b/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
index 34ca5bff..04e0ecfc 100644
--- a/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
+++ b/problems/helion/gated_deltanet_chunk_fwd_h_py/submission.py
@@ -9,9 +9,9 @@
 # Autotune locally for each shape, then paste the best config here.
 SHAPE_CONFIGS: dict[tuple, helion.Config] = {
     # Test shapes
-    (1, 64, 2, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (2, 128, 4, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (1, 256, 4, 64, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (1, 64, 2, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (2, 128, 4, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (1, 256, 4, 64, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
     # Benchmark shapes
     (1, 64, 1, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
     (2, 512, 3, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
diff --git a/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py b/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
index 70c17e67..0743521d 100644
--- a/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
+++ b/problems/helion/gated_deltanet_chunk_fwd_o_py/submission.py
@@ -9,9 +9,9 @@
 # Autotune locally for each shape, then paste the best config here.
 SHAPE_CONFIGS: dict[tuple, helion.Config] = {
     # Test shapes
-    (1, 64, 2, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (2, 128, 4, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (1, 256, 4, 64, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (1, 64, 2, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (2, 128, 4, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (1, 256, 4, 64, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
     # Benchmark shapes
     (1, 64, 1, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
     (2, 512, 3, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
diff --git a/problems/helion/gated_deltanet_recompute_w_u_py/submission.py b/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
index f507f21e..07fb0691 100644
--- a/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
+++ b/problems/helion/gated_deltanet_recompute_w_u_py/submission.py
@@ -9,9 +9,9 @@
 # Autotune locally for each shape, then paste the best config here.
 SHAPE_CONFIGS: dict[tuple, helion.Config] = {
     # Test shapes
-    (1, 64, 2, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (2, 128, 4, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
-    (1, 256, 4, 64, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with default config or any config that passes correctness check
+    (1, 64, 2, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (2, 128, 4, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
+    (1, 256, 4, 64, 128): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: use any config that passes correctness check
     # Benchmark shapes
     (1, 64, 1, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config
     (2, 512, 3, 64, 64): helion.Config(block_sizes=[], num_warps=1, num_stages=1),  # TODO: replace with your autotuned config