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Adding 2D loops

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paboyle 2018-06-13 20:13:01 +01:00
parent 066be31a3b
commit ebd730bd54
1 changed files with 29 additions and 2 deletions
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29
lib/threads/Pragmas.h
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@ -95,7 +95,7 @@ void LambdaApply(uint64_t base, uint64_t Num, lambda Lambda)
auto lambda = [=] accelerator (Iterator iterator) mutable { \
__VA_ARGS__; \
}; \
Iterator num = range.end(); \
Iterator num = range.end() - range.begin(); \
Iterator base = range.begin(); \
Iterator num_block = (num+gpu_threads-1)/gpu_threads; \
LambdaApply<<<num_block,gpu_threads>>>(base,num,lambda); \
@ -108,6 +108,33 @@ void LambdaApply(uint64_t base, uint64_t Num, lambda Lambda)
#define cpu_loop( iterator, range, ... ) thread_loop( (auto iterator = range.begin();iterator<range.end();iterator++), { __VA_ARGS__ });
template<typename lambda> __global__
void LambdaApply2D(uint64_t Osites, uint64_t Isites, lambda Lambda)
{
uint64_t site = threadIdx.x + blockIdx.x*blockDim.x;
uint64_t osite = site / Isites;
if ( (osite <Osites) ) {
Lambda(osite);
}
}
#define coalesce_loop( iterator, range, nsimd, ... ) \
typedef uint64_t Iterator; \
auto lambda = [=] accelerator (Iterator iterator) mutable { \
__VA_ARGS__; \
}; \
Iterator num = range.end() - range.begin(); \
Iterator base = range.begin(); \
Iterator cu_threads= gpu_threads; \
Iterator cu_blocks = num*nsimd/cu_threads; \
LambdaApply2D<<<cu_blocks,cu_threads>>>(num,(uint64_t)nsimd,lambda); \
cudaDeviceSynchronize(); \
cudaError err = cudaGetLastError(); \
if ( cudaSuccess != err ) { \
printf("Cuda error %s\n",cudaGetErrorString( err )); \
exit(0); \
}
#else
#define accelerator