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/*
-- MAGMA (version 2.9.0) --
Univ. of Tennessee, Knoxville
Univ. of California, Berkeley
Univ. of Colorado, Denver
@date January 2025
@precisions normal z -> s d c
@author Hartwig Anzt
*/
#include "magmasparse_internal.h"
//#include <stdlib.h>
/**
Purpose
-------
Allocates memory for magma_z_matrix and initializes it
with the passed value.
Arguments
---------
@param[out]
x magma_z_matrix*
vector to initialize
@param[in]
mem_loc magma_location_t
memory for vector
@param[in]
num_rows magma_int_t
desired length of vector
@param[in]
num_cols magma_int_t
desired width of vector-block (columns of dense matrix)
@param[in]
values magmaDoubleComplex
entries in vector
@param[in]
queue magma_queue_t
Queue to execute in.
@ingroup magmasparse_zaux
********************************************************************/
extern "C" magma_int_t
magma_zvinit(
magma_z_matrix *x,
magma_location_t mem_loc,
magma_int_t num_rows,
magma_int_t num_cols,
magmaDoubleComplex values,
magma_queue_t queue )
{
magma_int_t info = 0;
// make sure the target structure is empty
magma_zmfree( x, queue );
x->ownership = MagmaTrue;
x->val = NULL;
x->diag = NULL;
x->row = NULL;
x->rowidx = NULL;
x->col = NULL;
x->list = NULL;
x->blockinfo = NULL;
x->dval = NULL;
x->ddiag = NULL;
x->drow = NULL;
x->drowidx = NULL;
x->dcol = NULL;
x->dlist = NULL;
x->storage_type = Magma_DENSE;
x->memory_location = mem_loc;
x->sym = Magma_GENERAL;
x->diagorder_type = Magma_VALUE;
x->fill_mode = MagmaFull;
x->num_rows = num_rows;
x->num_cols = num_cols;
x->nnz = num_rows*num_cols;
x->max_nnz_row = num_cols;
x->diameter = 0;
x->blocksize = 1;
x->numblocks = 1;
x->alignment = 1;
x->major = MagmaColMajor;
x->ld = num_rows;
if ( mem_loc == Magma_CPU ) {
CHECK( magma_zmalloc_cpu( &x->val, x->nnz ));
for( magma_int_t i=0; i<x->nnz; i++) {
x->val[i] = values;
}
}
else if ( mem_loc == Magma_DEV ) {
CHECK( magma_zmalloc( &x->val, x->nnz ));
magmablas_zlaset( MagmaFull, x->num_rows, x->num_cols, values, values, x->val, x->num_rows, queue );
}
cleanup:
return info;
}
/**
Purpose
-------
Allocates memory for magma_z_matrix and initializes it
with random values.
Arguments
---------
@param[out]
x magma_z_matrix*
vector to initialize
@param[in]
mem_loc magma_location_t
memory for vector
@param[in]
num_rows magma_int_t
desired length of vector
@param[in]
num_cols magma_int_t
desired width of vector-block (columns of dense matrix)
@param[in]
queue magma_queue_t
Queue to execute in.
@ingroup magmasparse_zaux
********************************************************************/
extern "C" magma_int_t
magma_zvinit_rand(
magma_z_matrix *x,
magma_location_t mem_loc,
magma_int_t num_rows,
magma_int_t num_cols,
magma_queue_t queue )
{
magma_int_t info = 0;
// make sure the target structure is empty
magma_zmfree( x, queue );
x->ownership = MagmaTrue;
magma_z_matrix x_h = {Magma_CSR};
x->val = NULL;
x->diag = NULL;
x->row = NULL;
x->rowidx = NULL;
x->col = NULL;
x->list = NULL;
x->blockinfo = NULL;
x->dval = NULL;
x->ddiag = NULL;
x->drow = NULL;
x->drowidx = NULL;
x->dcol = NULL;
x->dlist = NULL;
x->storage_type = Magma_DENSE;
x->memory_location = mem_loc;
x->sym = Magma_GENERAL;
x->diagorder_type = Magma_VALUE;
x->fill_mode = MagmaFull;
x->num_rows = num_rows;
x->num_cols = num_cols;
x->nnz = num_rows*num_cols;
x->max_nnz_row = num_cols;
x->diameter = 0;
x->blocksize = 1;
x->numblocks = 1;
x->alignment = 1;
x->major = MagmaColMajor;
x->ld = num_rows;
if ( mem_loc == Magma_CPU ) {
/* Intializes random number generator */
srand((unsigned) 1);
CHECK( magma_zmalloc_cpu( &x->val, x->nnz ));
for( magma_int_t i=0; i<x->nnz; i++) {
x->val[i] = MAGMA_Z_MAKE( ((double)(2*rand()))/ RAND_MAX - 1., ((double)(2*rand()))/ RAND_MAX - 1. );
}
}
else if ( mem_loc == Magma_DEV ) {
CHECK( magma_zvinit_rand( &x_h, Magma_CPU, num_rows, num_cols, queue ));
CHECK( magma_zmtransfer( x_h, x, Magma_CPU, Magma_DEV, queue ) );
}
cleanup:
magma_zmfree( &x_h, queue );
return info;
}
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