/**
*
* @file starpu/codelet_zgetrf_blocked.c
*
* @copyright 2012-2024 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria,
* Univ. Bordeaux. All rights reserved.
*
***
*
* @brief Chameleon zpanel StarPU codelets
*
* @version 1.3.0
* @comment Codelets to perform panel factorization with partial pivoting
*
* @author Mathieu Faverge
* @author Matthieu Kuhn
* @date 2024-02-18
* @precisions normal z -> c d s
*
*/
#include "chameleon_starpu.h"
#include "runtime_codelet_z.h"
#include <coreblas/cblas_wrapper.h>
CHAMELEON_CL_CB( zgetrf_blocked_diag, cti_handle_get_m(task->handles[0]), 0, 0, M );
CHAMELEON_CL_CB( zgetrf_blocked_offdiag, cti_handle_get_m(task->handles[0]), 0, 0, M );
CHAMELEON_CL_CB( zgetrf_blocked_trsm, cti_handle_get_m(task->handles[0]), 0, 0, M );
#if !defined(CHAMELEON_SIMULATION)
static void cl_zgetrf_blocked_diag_cpu_func(void *descr[], void *cl_arg)
{
int h, m0, ib;
RUNTIME_sequence_t *sequence;
RUNTIME_request_t *request;
CHAM_tile_t *tileA;
CHAM_tile_t *tileU;
int *ipiv;
cppi_interface_t *nextpiv;
cppi_interface_t *prevpiv;
CHAMELEON_Complex64_t *U = NULL;
int ldu = -1;;
starpu_codelet_unpack_args( cl_arg, &h, &m0, &ib,
&sequence, &request );
tileA = cti_interface_get(descr[0]);
ipiv = (int *)STARPU_VECTOR_GET_PTR(descr[1]);
nextpiv = (cppi_interface_t*) descr[2];
prevpiv = (cppi_interface_t*) descr[3];
if ( descr[4] != NULL ) {
tileU = cti_interface_get(descr[4]);
U = CHAM_tile_get_ptr( tileU );
ldu = tileU->ld;
}
if ( h > 0 ) {
cppi_display_dbg( prevpiv, stderr, "Prevpiv before call: " );
}
if ( h < tileA->n ) {
cppi_display_dbg( nextpiv, stderr, "Nextpiv before call: " );
}
/*
* Make sure the nextpiv interface store the right information about the
* column and diagonal row for the reduction
*/
nextpiv->h = h;
nextpiv->has_diag = 1;
CORE_zgetrf_panel_diag( tileA->m, tileA->n, h, m0, ib,
CHAM_tile_get_ptr( tileA ), tileA->ld,
U, ldu,
ipiv, &(nextpiv->pivot), &(prevpiv->pivot) );
if ( h > 0 ) {
cppi_display_dbg( prevpiv, stderr, "Prevpiv after call: " );
}
if ( h < tileA->n ) {
cppi_display_dbg( nextpiv, stderr, "Nextpiv after call: " );
}
}
#endif /* !defined(CHAMELEON_SIMULATION) */
/*
* Codelet definition
*/
CODELETS_CPU( zgetrf_blocked_diag, cl_zgetrf_blocked_diag_cpu_func );
void INSERT_TASK_zgetrf_blocked_diag( const RUNTIME_option_t *options,
int h, int m0, int ib,
CHAM_desc_t *A, int Am, int An,
CHAM_desc_t *U, int Um, int Un,
CHAM_ipiv_t *ipiv )
{
struct starpu_codelet *codelet = &cl_zgetrf_blocked_diag;
void (*callback)(void*) = options->profiling ? cl_zgetrf_blocked_diag_callback : NULL;
char *cl_name = "zgetrf_blocked_diag";
int access_ipiv = ( h == 0 ) ? STARPU_W : STARPU_RW;
int access_npiv = ( h == ipiv->n ) ? STARPU_R : STARPU_REDUX;
int access_ppiv = ( h == 0 ) ? STARPU_NONE : STARPU_R;
int accessU = STARPU_RW;
if ( h == 0 ) {
accessU = STARPU_NONE;
/* U can be set after ppiv because they are both none together, so it won't shift the buffers */
}
else if ( h%ib == 0 ) {
accessU = STARPU_R;
}
else if ( h%ib == 1 ) {
accessU = STARPU_W;
}
/* Handle cache */
CHAMELEON_BEGIN_ACCESS_DECLARATION;
CHAMELEON_ACCESS_RW( A, Am, An );
CHAMELEON_END_ACCESS_DECLARATION;
/* Refine name */
cl_name = chameleon_codelet_name( cl_name, 1,
A->get_blktile( A, Am, An ) );
rt_starpu_insert_task(
codelet,
STARPU_VALUE, &h, sizeof(int),
STARPU_VALUE, &m0, sizeof(int),
STARPU_VALUE, &ib, sizeof(int),
STARPU_VALUE, &(options->sequence), sizeof(RUNTIME_sequence_t*),
STARPU_VALUE, &(options->request), sizeof(RUNTIME_request_t*),
STARPU_PRIORITY, options->priority,
STARPU_CALLBACK, callback,
STARPU_EXECUTE_ON_WORKER, options->workerid,
#if defined(CHAMELEON_CODELETS_HAVE_NAME)
STARPU_NAME, cl_name,
#endif
/* STARPU_NONE must be the last argument for older version of StarPU where STARPU_NONE = 0 */
STARPU_RW, RTBLKADDR(A, CHAMELEON_Complex64_t, Am, An),
access_ipiv, RUNTIME_ipiv_getaddr( ipiv, An ),
access_npiv, RUNTIME_pivot_getaddr( ipiv, An, h ),
access_ppiv, RUNTIME_pivot_getaddr( ipiv, An, h-1 ),
accessU, RTBLKADDR(U, CHAMELEON_Complex64_t, Um, Un),
0);
}
#if !defined(CHAMELEON_SIMULATION)
static void cl_zgetrf_blocked_offdiag_cpu_func(void *descr[], void *cl_arg)
{
int h, m0, ib;
RUNTIME_sequence_t *sequence;
RUNTIME_request_t *request;
CHAM_tile_t *tileA;
CHAM_tile_t *tileU;
cppi_interface_t *nextpiv;
cppi_interface_t *prevpiv;
CHAMELEON_Complex64_t *U = NULL;
int ldu = -1;;
starpu_codelet_unpack_args( cl_arg, &h, &m0, &ib, &sequence, &request );
tileA = cti_interface_get(descr[0]);
nextpiv = (cppi_interface_t*) descr[1];
prevpiv = (cppi_interface_t*) descr[2];
if ( descr[3] != NULL ) {
tileU = cti_interface_get(descr[3]);
U = CHAM_tile_get_ptr( tileU );
ldu = tileU->ld;
}
nextpiv->h = h; /* Initialize in case it uses a copy */
CORE_zgetrf_panel_offdiag( tileA->m, tileA->n, h, m0, ib,
CHAM_tile_get_ptr(tileA), tileA->ld,
U, ldu,
&(nextpiv->pivot), &(prevpiv->pivot) );
}
#endif /* !defined(CHAMELEON_SIMULATION) */
/*
* Codelet definition
*/
CODELETS_CPU(zgetrf_blocked_offdiag, cl_zgetrf_blocked_offdiag_cpu_func)
void INSERT_TASK_zgetrf_blocked_offdiag( const RUNTIME_option_t *options,
int h, int m0, int ib,
CHAM_desc_t *A, int Am, int An,
CHAM_desc_t *U, int Um, int Un,
CHAM_ipiv_t *ipiv )
{
struct starpu_codelet *codelet = &cl_zgetrf_blocked_offdiag;
int access_npiv = ( h == ipiv->n ) ? STARPU_R : STARPU_REDUX;
int access_ppiv = ( h == 0 ) ? STARPU_NONE : STARPU_R;
int accessU = ((h%ib == 0) && (h > 0)) ? STARPU_R : STARPU_NONE;
void (*callback)(void*) = options->profiling ? cl_zgetrf_blocked_offdiag_callback : NULL;
char *cl_name = "zgetrf_blocked_offdiag";
/* Handle cache */
CHAMELEON_BEGIN_ACCESS_DECLARATION;
CHAMELEON_ACCESS_RW( A, Am, An );
CHAMELEON_END_ACCESS_DECLARATION;
/* Refine name */
cl_name = chameleon_codelet_name( cl_name, 1,
A->get_blktile( A, Am, An ) );
rt_starpu_insert_task(
codelet,
STARPU_VALUE, &h, sizeof(int),
STARPU_VALUE, &m0, sizeof(int),
STARPU_VALUE, &ib, sizeof(int),
STARPU_VALUE, &(options->sequence), sizeof(RUNTIME_sequence_t *),
STARPU_VALUE, &(options->request), sizeof(RUNTIME_request_t *),
STARPU_PRIORITY, options->priority,
STARPU_CALLBACK, callback,
STARPU_EXECUTE_ON_WORKER, options->workerid,
#if defined(CHAMELEON_CODELETS_HAVE_NAME)
STARPU_NAME, cl_name,
#endif
/* STARPU_NONE must be the last argument for older version of StarPU where STARPU_NONE = 0 */
STARPU_RW, RTBLKADDR(A, CHAMELEON_Complex64_t, Am, An),
access_npiv, RUNTIME_pivot_getaddr( ipiv, An, h ),
access_ppiv, RUNTIME_pivot_getaddr( ipiv, An, h-1 ),
accessU, RTBLKADDR(U, CHAMELEON_Complex64_t, Um, Un),
0);
}
static const CHAMELEON_Complex64_t zone = (CHAMELEON_Complex64_t)1.0;
#if !defined(CHAMELEON_SIMULATION)
static void cl_zgetrf_blocked_trsm_cpu_func(void *descr[], void *cl_arg)
{
int m, n, h, ib;
CHAM_tile_t *tileU;
cppi_interface_t *prevpiv;
CHAMELEON_Complex64_t *U;
int ldu;
starpu_codelet_unpack_args( cl_arg, &m, &n, &h, &ib );
tileU = cti_interface_get(descr[0]);
prevpiv = (cppi_interface_t*) descr[1];
U = CHAM_tile_get_ptr( tileU );
ldu = tileU->ld;
/* Copy the final max line of the block and solve */
cblas_zcopy( n, prevpiv->pivot.pivrow, 1,
U + m - 1, ldu );
if ( (n-h) > 0 ) {
cblas_ztrsm( CblasColMajor,
CblasLeft, CblasLower,
CblasNoTrans, CblasUnit,
ib, n - h,
CBLAS_SADDR(zone), U + (h-ib) * ldu, ldu,
U + h * ldu, ldu );
}
}
#endif /* !defined(CHAMELEON_SIMULATION) */
/*
* Codelet definition
*/
CODELETS_CPU(zgetrf_blocked_trsm, cl_zgetrf_blocked_trsm_cpu_func)
void INSERT_TASK_zgetrf_blocked_trsm( const RUNTIME_option_t *options,
int m, int n, int h, int ib,
CHAM_desc_t *U, int Um, int Un,
CHAM_ipiv_t *ipiv )
{
struct starpu_codelet *codelet = &cl_zgetrf_blocked_trsm;
void (*callback)(void*) = options->profiling ? cl_zgetrf_blocked_trsm_callback : NULL;
char *cl_name = "zgetrf_blocked_trsm";
/* Handle cache */
CHAMELEON_BEGIN_ACCESS_DECLARATION;
CHAMELEON_ACCESS_RW( U, Um, Un );
CHAMELEON_END_ACCESS_DECLARATION;
/* Refine name */
cl_name = chameleon_codelet_name( cl_name, 1,
U->get_blktile( U, Um, Un ) );
rt_starpu_insert_task(
codelet,
STARPU_VALUE, &m, sizeof(int),
STARPU_VALUE, &n, sizeof(int),
STARPU_VALUE, &h, sizeof(int),
STARPU_VALUE, &ib, sizeof(int),
STARPU_RW, RTBLKADDR(U, CHAMELEON_Complex64_t, Um, Un),
STARPU_R, RUNTIME_pivot_getaddr( ipiv, Un, h-1 ),
STARPU_PRIORITY, options->priority,
STARPU_CALLBACK, callback,
STARPU_EXECUTE_ON_WORKER, options->workerid,
#if defined(CHAMELEON_CODELETS_HAVE_NAME)
STARPU_NAME, cl_name,
#endif
0);
}