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regionadds_wrapper.go
131 lines (109 loc) · 3.1 KB
/
regionadds_wrapper.go
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package cuda
/*
THIS FILE IS AUTO-GENERATED BY CUDA2GO.
EDITING IS FUTILE.
*/
import (
"github.com/kuchkin/mumax3-gneb/cuda/cu"
"github.com/kuchkin/mumax3-gneb/timer"
"sync"
"unsafe"
)
// CUDA handle for regionadds kernel
var regionadds_code cu.Function
// Stores the arguments for regionadds kernel invocation
type regionadds_args_t struct {
arg_dst unsafe.Pointer
arg_LUT unsafe.Pointer
arg_regions unsafe.Pointer
arg_N int
argptr [4]unsafe.Pointer
sync.Mutex
}
// Stores the arguments for regionadds kernel invocation
var regionadds_args regionadds_args_t
func init() {
// CUDA driver kernel call wants pointers to arguments, set them up once.
regionadds_args.argptr[0] = unsafe.Pointer(®ionadds_args.arg_dst)
regionadds_args.argptr[1] = unsafe.Pointer(®ionadds_args.arg_LUT)
regionadds_args.argptr[2] = unsafe.Pointer(®ionadds_args.arg_regions)
regionadds_args.argptr[3] = unsafe.Pointer(®ionadds_args.arg_N)
}
// Wrapper for regionadds CUDA kernel, asynchronous.
func k_regionadds_async(dst unsafe.Pointer, LUT unsafe.Pointer, regions unsafe.Pointer, N int, cfg *config) {
if Synchronous { // debug
Sync()
timer.Start("regionadds")
}
regionadds_args.Lock()
defer regionadds_args.Unlock()
if regionadds_code == 0 {
regionadds_code = fatbinLoad(regionadds_map, "regionadds")
}
regionadds_args.arg_dst = dst
regionadds_args.arg_LUT = LUT
regionadds_args.arg_regions = regions
regionadds_args.arg_N = N
args := regionadds_args.argptr[:]
cu.LaunchKernel(regionadds_code, cfg.Grid.X, cfg.Grid.Y, cfg.Grid.Z, cfg.Block.X, cfg.Block.Y, cfg.Block.Z, 0, stream0, args)
if Synchronous { // debug
Sync()
timer.Stop("regionadds")
}
}
// maps compute capability on PTX code for regionadds kernel.
var regionadds_map = map[int]string{0: "",
50: regionadds_ptx_50}
// regionadds PTX code for various compute capabilities.
const (
regionadds_ptx_50 = `
.version 7.5
.target sm_50
.address_size 64
// .globl regionadds
.visible .entry regionadds(
.param .u64 regionadds_param_0,
.param .u64 regionadds_param_1,
.param .u64 regionadds_param_2,
.param .u32 regionadds_param_3
)
{
.reg .pred %p<2>;
.reg .b16 %rs<2>;
.reg .f32 %f<4>;
.reg .b32 %r<11>;
.reg .b64 %rd<13>;
ld.param.u64 %rd1, [regionadds_param_0];
ld.param.u64 %rd2, [regionadds_param_1];
ld.param.u64 %rd3, [regionadds_param_2];
ld.param.u32 %r2, [regionadds_param_3];
mov.u32 %r3, %ctaid.y;
mov.u32 %r4, %nctaid.x;
mov.u32 %r5, %ctaid.x;
mad.lo.s32 %r6, %r3, %r4, %r5;
mov.u32 %r7, %ntid.x;
mov.u32 %r8, %tid.x;
mad.lo.s32 %r1, %r6, %r7, %r8;
setp.ge.s32 %p1, %r1, %r2;
@%p1 bra $L__BB0_2;
cvta.to.global.u64 %rd4, %rd3;
cvt.s64.s32 %rd5, %r1;
add.s64 %rd6, %rd4, %rd5;
ld.global.nc.u8 %rs1, [%rd6];
cvta.to.global.u64 %rd7, %rd2;
cvt.u32.u16 %r9, %rs1;
and.b32 %r10, %r9, 255;
mul.wide.u32 %rd8, %r10, 4;
add.s64 %rd9, %rd7, %rd8;
cvta.to.global.u64 %rd10, %rd1;
mul.wide.s32 %rd11, %r1, 4;
add.s64 %rd12, %rd10, %rd11;
ld.global.f32 %f1, [%rd12];
ld.global.nc.f32 %f2, [%rd9];
add.f32 %f3, %f2, %f1;
st.global.f32 [%rd12], %f3;
$L__BB0_2:
ret;
}
`
)