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// =================================================================================================
// This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. This
// project loosely follows the Google C++ styleguide and uses a tab-size of two spaces and a max-
// width of 100 characters per line.
//
// Author(s):
// Cedric Nugteren <www.cedricnugteren.nl>
//
// This file contains the batched version of the non-direct GEMM kernel. See part 1 for information
// about the non-batched version of the kernel.
//
// =================================================================================================
// Enables loading of this file using the C++ pre-processor's #include (C++11 standard raw string
// literal). Comment-out this line for syntax-highlighting when developing.
R"(
// =================================================================================================
#if defined(ROUTINE_GEMMBATCHED)
__kernel __attribute__((reqd_work_group_size(MDIMC, NDIMC, 1)))
void XgemmBatched(const int kSizeM, const int kSizeN, const int kSizeK,
const __constant real_arg* arg_alphas,
const __constant real_arg* arg_betas,
const __global realM* restrict agm, const int a_one, const int a_two,
const __global realN* restrict bgm, const int b_one, const int b_two,
__global realM* cgm, const int c_one, const int c_two) {
const int batch = get_group_id(2);
const real alpha = GetRealArg(arg_alphas[batch]);
const real beta = GetRealArg(arg_betas[batch]);
// Sets the offsets
const int a_offset = batch * a_one * a_two;
const int b_offset = batch * b_one * b_two;
const int c_offset = batch * c_one * c_two;
const __global realM* restrict agm_ = &agm[a_offset / VWM];
const __global realN* restrict bgm_ = &bgm[b_offset / VWN];
__global realM* restrict cgm_ = &cgm[c_offset / VWM];
// Allocates workgroup-private memory (local memory)
#if SA == 1
__local realM alm[KWG * MWG/VWM];
#endif
#if SB == 1
__local realN blm[KWG * NWG/VWN];
#endif
// Computes the matrix-multiplication and stores the result in global memory
#if SA == 1 && SB == 1
XgemmBody(kSizeM, kSizeN, kSizeK, agm_, bgm_, cgm_, alpha, beta, alm, blm);
#elif SA == 1
XgemmBody(kSizeM, kSizeN, kSizeK, agm_, bgm_, cgm_, alpha, beta, alm);
#elif SB == 1
XgemmBody(kSizeM, kSizeN, kSizeK, agm_, bgm_, cgm_, alpha, beta, blm);
#else
XgemmBody(kSizeM, kSizeN, kSizeK, agm_, bgm_, cgm_, alpha, beta);
#endif
}
#endif
// =================================================================================================
#if defined(ROUTINE_GEMMSTRIDEDBATCHED)
__kernel __attribute__((reqd_work_group_size(MDIMC, NDIMC, 1)))
void XgemmStridedBatched(const int kSizeM, const int kSizeN, const int kSizeK,
const real_arg arg_alpha, const real_arg arg_beta,
const __global realM* restrict agm, const int a_one, const int a_two,
const __global realN* restrict bgm, const int b_one, const int b_two,
__global realM* cgm, const int c_one, const int c_two) {
const int batch = get_group_id(2);
const real alpha = GetRealArg(arg_alpha);
const real beta = GetRealArg(arg_beta);
// Sets the offsets
const int a_offset = batch * a_one * a_two;
const int b_offset = batch * b_one * b_two;
const int c_offset = batch * c_one * c_two;
const __global realM* restrict agm_ = &agm[a_offset / VWM];
const __global realN* restrict bgm_ = &bgm[b_offset / VWN];
__global realM* restrict cgm_ = &cgm[c_offset / VWM];
// Allocates workgroup-private memory (local memory)
#if SA == 1
__local realM alm[KWG * MWG/VWM];
#endif
#if SB == 1
__local realN blm[KWG * NWG/VWN];
#endif
// Computes the matrix-multiplication and stores the result in global memory
#if SA == 1 && SB == 1
XgemmBody(kSizeM, kSizeN, kSizeK, agm_, bgm_, cgm_, alpha, beta, alm, blm);
#elif SA == 1
XgemmBody(kSizeM, kSizeN, kSizeK, agm_, bgm_, cgm_, alpha, beta, alm);
#elif SB == 1
XgemmBody(kSizeM, kSizeN, kSizeK, agm_, bgm_, cgm_, alpha, beta, blm);
#else
XgemmBody(kSizeM, kSizeN, kSizeK, agm_, bgm_, cgm_, alpha, beta);
#endif
}
#endif
// =================================================================================================
// End of the C++11 raw string literal
)"
// =================================================================================================
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