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/*
-- MAGMA (version 2.9.0) --
Univ. of Tennessee, Knoxville
Univ. of California, Berkeley
Univ. of Colorado, Denver
@date January 2025
@author Ahmad Abdelfattah
*/
#include "magma_internal.h"
#ifdef MAGMA_HAVE_CUDA
#include"./gbtrf_tuning/dgbtrf_batch_a100.h"
#else
#include"./gbtrf_tuning/dgbtrf_batch_mi250x.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
// =============================================================================
/// @addtogroup magma_tuning
/// @{
////////////////////////////////////////////////////////////////////////////////
// auxiliary function to determine the parameters of batch zgbtrf
void
magma_get_zgbtrf_batched_params(
magma_int_t m, magma_int_t n,
magma_int_t kl, magma_int_t ku,
magma_int_t *nb, magma_int_t *threads)
{
// get index for kl, ku based on the rounded-up even
// values of the input bandwidths
int ikl = (kl + 1) / 2;
int iku = (ku + 1) / 2;
ikl--;
iku--;
// make sure kl and ku are in the range [0, 16]
ikl = min( max(ikl, 0), 15 );
iku = min( max(iku, 0), 15 );
// the tuning data for nb and threads are stored in 2D
// array of size 16x16. Each entry is for the even values
// of (kl, ku) in the range [2, 4, 6, ..., 32]
// TODO: generate tuning data for z-precision
#ifdef MAGMA_HAVE_CUDA
*nb = dgbtrf_batch_nb_a100[ikl][iku];
*threads = dgbtrf_batch_th_a100[ikl][iku];
#else
*nb = dgbtrf_batch_nb_mi250x[ikl][iku];
*threads = dgbtrf_batch_th_mi250x[ikl][iku];
#endif
}
////////////////////////////////////////////////////////////////////////////////
// auxiliary function to determine the parameters of batch cgbtrf
void
magma_get_cgbtrf_batched_params(
magma_int_t m, magma_int_t n,
magma_int_t kl, magma_int_t ku,
magma_int_t *nb, magma_int_t *threads)
{
// get index for kl, ku based on the rounded-up even
// values of the input bandwidths
int ikl = (kl + 1) / 2;
int iku = (ku + 1) / 2;
ikl--;
iku--;
// make sure kl and ku are in the range [0, 16]
ikl = min( max(ikl, 0), 15 );
iku = min( max(iku, 0), 15 );
// the tuning data for nb and threads are stored in 2D
// array of size 16x16. Each entry is for the even values
// of (kl, ku) in the range [2, 4, 6, ..., 32]
// TODO: generate tuning data for c-precision
#ifdef MAGMA_HAVE_CUDA
*nb = dgbtrf_batch_nb_a100[ikl][iku];
*threads = dgbtrf_batch_th_a100[ikl][iku];
#else
*nb = dgbtrf_batch_nb_mi250x[ikl][iku];
*threads = dgbtrf_batch_th_mi250x[ikl][iku];
#endif
}
////////////////////////////////////////////////////////////////////////////////
// auxiliary function to determine the parameters of batch dgbtrf
void
magma_get_dgbtrf_batched_params(
magma_int_t m, magma_int_t n,
magma_int_t kl, magma_int_t ku,
magma_int_t *nb, magma_int_t *threads)
{
// get index for kl, ku based on the rounded-up even
// values of the input bandwidths
int ikl = (kl + 1) / 2;
int iku = (ku + 1) / 2;
ikl--;
iku--;
// make sure kl and ku are in the range [0, 16]
ikl = min( max(ikl, 0), 15 );
iku = min( max(iku, 0), 15 );
// the tuning data for nb and threads are stored in 2D
// array of size 16x16. Each entry is for the even values
// of (kl, ku) in the range [2, 4, 6, ..., 32]
#ifdef MAGMA_HAVE_CUDA
*nb = dgbtrf_batch_nb_a100[ikl][iku];
*threads = dgbtrf_batch_th_a100[ikl][iku];
#else
*nb = dgbtrf_batch_nb_mi250x[ikl][iku];
*threads = dgbtrf_batch_th_mi250x[ikl][iku];
#endif
}
////////////////////////////////////////////////////////////////////////////////
// auxiliary function to determine the parameters of batch sgbtrf
void
magma_get_sgbtrf_batched_params(
magma_int_t m, magma_int_t n,
magma_int_t kl, magma_int_t ku,
magma_int_t *nb, magma_int_t *threads)
{
// get index for kl, ku based on the rounded-up even
// values of the input bandwidths
int ikl = (kl + 1) / 2;
int iku = (ku + 1) / 2;
ikl--;
iku--;
// make sure kl and ku are in the range [0, 16]
ikl = min( max(ikl, 0), 15 );
iku = min( max(iku, 0), 15 );
// the tuning data for nb and threads are stored in 2D
// array of size 16x16. Each entry is for the even values
// of (kl, ku) in the range [2, 4, 6, ..., 32]
// TODO: generate tuning data for s-precision
#ifdef MAGMA_HAVE_CUDA
*nb = dgbtrf_batch_nb_a100[ikl][iku];
*threads = dgbtrf_batch_th_a100[ikl][iku];
#else
*nb = dgbtrf_batch_nb_mi250x[ikl][iku];
*threads = dgbtrf_batch_th_mi250x[ikl][iku];
#endif
}
#ifdef __cplusplus
} // extern "C"
#endif
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