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[Kernel] support non-zero cuda devices in punica kernels #3636

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merged 2 commits into from
Mar 27, 2024

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jeejeelee
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FILL IN THE PR DESCRIPTION HERE

  • avoid punica kernel executeed on non-zero GPU resulted in RuntimeError: CUDA error: an illegal memory access was encountered.
  • Improve test_punica.py

FIX #xxxx (link existing issues this PR will resolve)

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@jeejeelee
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after changing the aforementioned code, test_punica's result:

6956 passed, 3996 skipped in 5907.20s (1:38:27)...

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@Yard1 Yard1 left a comment

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LGTM, thanks!

@simon-mo
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Thanks for the fix! Please fix formatting.

@simon-mo simon-mo enabled auto-merge (squash) March 26, 2024 18:05
auto-merge was automatically disabled March 26, 2024 23:57

Head branch was pushed to by a user without write access

@simon-mo simon-mo enabled auto-merge (squash) March 26, 2024 23:59
@simon-mo simon-mo merged commit 566b57c into vllm-project:main Mar 27, 2024
33 checks passed
xjpang pushed a commit to xjpang/vllm that referenced this pull request Mar 31, 2024
@yyccli
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yyccli commented Apr 28, 2024

Hi, i'm not sure whether this problem came back in some cases after introducing full tp in lora(see #3524 )
when i run func test_linear_parallel in test_layers.py and got the following errors:
image
could i trouble you take some time to look at this?
cc @Yard1 @FurtherAI

@yyccli
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yyccli commented Apr 28, 2024

more info after appending -s flag in pytest

FAILED[E ProcessGroupNCCL.cpp:1182] [Rank 0] NCCL watchdog thread terminated with exception: CUDA error: an illegal memory access was encountered
CUDA kernel errors might be asynchronously reported at some other API call, so the stacktrace below might be incorrect.
For debugging consider passing CUDA_LAUNCH_BLOCKING=1.
Compile with `TORCH_USE_CUDA_DSA` to enable device-side assertions.

Exception raised from c10_cuda_check_implementation at ../c10/cuda/CUDAException.cpp:44 (most recent call first):
frame #0: c10::Error::Error(c10::SourceLocation, std::string) + 0x57 (0x7f2ae3ac3d87 in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libc10.so)
frame #1: c10::detail::torchCheckFail(char const*, char const*, unsigned int, std::string const&) + 0x64 (0x7f2ae3a7475f in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libc10.so)
frame #2: c10::cuda::c10_cuda_check_implementation(int, char const*, char const*, int, bool) + 0x118 (0x7f2ae3b948a8 in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libc10_cuda.so)
frame #3: c10d::ProcessGroupNCCL::WorkNCCL::finishedGPUExecutionInternal() const + 0x6c (0x7f2a995d23ac in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libtorch_cuda.so)
frame #4: c10d::ProcessGroupNCCL::WorkNCCL::isCompleted() + 0x58 (0x7f2a995d64c8 in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libtorch_cuda.so)
frame #5: c10d::ProcessGroupNCCL::workCleanupLoop() + 0x15a (0x7f2a995d9bfa in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libtorch_cuda.so)
frame #6: c10d::ProcessGroupNCCL::ncclCommWatchdog() + 0x119 (0x7f2a995da839 in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libtorch_cuda.so)
frame #7: <unknown function> + 0xdc253 (0x7f2ae32b0253 in /usr/lib/x86_64-linux-gnu/libstdc++.so.6)
frame #8: <unknown function> + 0x94ac3 (0x7f2ae53fdac3 in /usr/lib/x86_64-linux-gnu/libc.so.6)
frame #9: clone + 0x44 (0x7f2ae548ebf4 in /usr/lib/x86_64-linux-gnu/libc.so.6)

terminate called after throwing an instance of 'c10::DistBackendError'
  what():  [Rank 0] NCCL watchdog thread terminated with exception: CUDA error: an illegal memory access was encountered
CUDA kernel errors might be asynchronously reported at some other API call, so the stacktrace below might be incorrect.
For debugging consider passing CUDA_LAUNCH_BLOCKING=1.
Compile with `TORCH_USE_CUDA_DSA` to enable device-side assertions.

Exception raised from c10_cuda_check_implementation at ../c10/cuda/CUDAException.cpp:44 (most recent call first):
frame #0: c10::Error::Error(c10::SourceLocation, std::string) + 0x57 (0x7f2ae3ac3d87 in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libc10.so)
frame #1: c10::detail::torchCheckFail(char const*, char const*, unsigned int, std::string const&) + 0x64 (0x7f2ae3a7475f in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libc10.so)
frame #2: c10::cuda::c10_cuda_check_implementation(int, char const*, char const*, int, bool) + 0x118 (0x7f2ae3b948a8 in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libc10_cuda.so)
frame #3: c10d::ProcessGroupNCCL::WorkNCCL::finishedGPUExecutionInternal() const + 0x6c (0x7f2a995d23ac in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libtorch_cuda.so)
frame #4: c10d::ProcessGroupNCCL::WorkNCCL::isCompleted() + 0x58 (0x7f2a995d64c8 in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libtorch_cuda.so)
frame #5: c10d::ProcessGroupNCCL::workCleanupLoop() + 0x15a (0x7f2a995d9bfa in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libtorch_cuda.so)
frame #6: c10d::ProcessGroupNCCL::ncclCommWatchdog() + 0x119 (0x7f2a995da839 in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libtorch_cuda.so)
frame #7: <unknown function> + 0xdc253 (0x7f2ae32b0253 in /usr/lib/x86_64-linux-gnu/libstdc++.so.6)
frame #8: <unknown function> + 0x94ac3 (0x7f2ae53fdac3 in /usr/lib/x86_64-linux-gnu/libc.so.6)
frame #9: clone + 0x44 (0x7f2ae548ebf4 in /usr/lib/x86_64-linux-gnu/libc.so.6)

Exception raised from ncclCommWatchdog at ../torch/csrc/distributed/c10d/ProcessGroupNCCL.cpp:1186 (most recent call first):
frame #0: c10::Error::Error(c10::SourceLocation, std::string) + 0x57 (0x7f2ae3ac3d87 in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libc10.so)
frame #1: <unknown function> + 0xdf6b11 (0x7f2a99330b11 in /workspace/vllm/.root_vllm/lib/python3.10/site-packages/torch/lib/libtorch_cuda.so)
frame #2: <unknown function> + 0xdc253 (0x7f2ae32b0253 in /usr/lib/x86_64-linux-gnu/libstdc++.so.6)
frame #3: <unknown function> + 0x94ac3 (0x7f2ae53fdac3 in /usr/lib/x86_64-linux-gnu/libc.so.6)
frame #4: clone + 0x44 (0x7f2ae548ebf4 in /usr/lib/x86_64-linux-gnu/libc.so.6)

Fatal Python error: Aborted

@jeejeelee
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@yyccli Did you test using only one GPU?

To my understanding, test_layers.py::test_linear_parallel only passes when using a single gpu, has nothing to do with #3524

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yyccli commented Apr 28, 2024

single gpu is ok, but ... if i specify two gpus, the test will just do tests on both gpu individually? 😰

@jeejeelee
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single gpu is ok, but ... if i specify two gpus, the test will just do tests on both gpu individually? 😰

yes

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4 participants