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|
/******************************************************************************
* Copyright (c) Intel Corporation - All rights reserved. *
* This file is part of the LIBXSMM library. *
* *
* For information on the license, see the LICENSE file. *
* Further information: https://github.com/hfp/libxsmm/ *
* SPDX-License-Identifier: BSD-3-Clause *
******************************************************************************/
/* Alexander Heinecke (Intel Corp.)
******************************************************************************/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <math.h>
#include <assert.h>
#if defined(__EDGE_EXECUTE_F32__)
#define REALTYPE float
#else
#define REALTYPE double
#endif
typedef struct edge_mat_desc {
unsigned int row_count;
unsigned int col_count;
unsigned int num_elements;
} edge_mat_desc;
static void libxsmm_sparse_csr_reader( const char* i_csr_file_in,
unsigned int** o_row_idx,
unsigned int** o_column_idx,
REALTYPE** o_values,
unsigned int* o_row_count,
unsigned int* o_column_count,
unsigned int* o_element_count ) {
FILE *l_csr_file_handle;
const unsigned int l_line_length = 512;
char l_line[512/*l_line_length*/+1];
unsigned int l_header_read = 0;
unsigned int* l_row_idx_id = NULL;
unsigned int l_i = 0;
l_csr_file_handle = fopen( i_csr_file_in, "r" );
if ( l_csr_file_handle == NULL ) {
fprintf( stderr, "cannot open CSR file!\n" );
return;
}
while (fgets(l_line, l_line_length, l_csr_file_handle) != NULL) {
if ( strlen(l_line) == l_line_length ) {
fprintf( stderr, "could not read file length!\n" );
return;
}
/* check if we are still reading comments header */
if ( l_line[0] == '%' ) {
continue;
} else {
/* if we are the first line after comment header, we allocate our data structures */
if ( l_header_read == 0 ) {
if (3 == sscanf(l_line, "%u %u %u", o_row_count, o_column_count, o_element_count) &&
0 != *o_row_count && 0 != *o_column_count && 0 != *o_element_count)
{
/* allocate CSC datastructure matching mtx file */
*o_column_idx = (unsigned int*) malloc(sizeof(unsigned int) * (*o_element_count));
*o_row_idx = (unsigned int*) malloc(sizeof(unsigned int) * (*o_row_count + (size_t)1));
*o_values = (REALTYPE*) malloc(sizeof(double) * (*o_element_count));
l_row_idx_id = (unsigned int*) malloc(sizeof(unsigned int) * (*o_row_count));
/* check if mallocs were successful */
if ( ( *o_row_idx == NULL ) ||
( *o_column_idx == NULL ) ||
( *o_values == NULL ) ||
( l_row_idx_id == NULL ) ) {
fprintf( stderr, "could not allocate sp data!\n" );
return;
}
/* set everything to zero for init */
memset(*o_row_idx, 0, sizeof(unsigned int)*(*o_row_count + (size_t)1));
memset(*o_column_idx, 0, sizeof(unsigned int)*(*o_element_count));
memset(*o_values, 0, sizeof(double)*(*o_element_count));
memset(l_row_idx_id, 0, sizeof(unsigned int)*(*o_row_count));
/* init column idx */
for ( l_i = 0; l_i < (*o_row_count + 1); l_i++)
(*o_row_idx)[l_i] = (*o_element_count);
/* init */
(*o_row_idx)[0] = 0;
l_i = 0;
l_header_read = 1;
} else {
fprintf( stderr, "could not csr description!\n" );
return;
}
/* now we read the actual content */
} else {
unsigned int l_row, l_column;
REALTYPE l_value;
/* read a line of content */
#if defined(__EDGE_EXECUTE_F32__)
if ( sscanf(l_line, "%u %u %f", &l_row, &l_column, &l_value) != 3 ) {
fprintf( stderr, "could not read element!\n" );
return;
}
#else
if ( sscanf(l_line, "%u %u %lf", &l_row, &l_column, &l_value) != 3 ) {
fprintf( stderr, "could not read element!\n" );
return;
}
#endif
/* adjust numbers to zero termination */
l_row--;
l_column--;
/* add these values to row and value structure */
(*o_column_idx)[l_i] = l_column;
(*o_values)[l_i] = l_value;
l_i++;
/* handle columns, set id to own for this column, yeah we need to handle empty columns */
l_row_idx_id[l_row] = 1;
(*o_row_idx)[l_row+1] = l_i;
}
}
}
/* close mtx file */
fclose( l_csr_file_handle );
/* check if we read a file which was consistent */
if ( l_i != (*o_element_count) ) {
fprintf( stderr, "we were not able to read all elements!\n" );
return;
}
if ( NULL == l_row_idx_id ) {
fprintf( stderr, "allocating memory for row indexes failed!\n" );
return;
}
/* let's handle empty rows */
for ( l_i = 0; l_i < (*o_row_count); l_i++) {
if ( l_row_idx_id[l_i] == 0 ) {
(*o_row_idx)[l_i+1] = (*o_row_idx)[l_i];
}
}
/* free helper data structure */
if ( l_row_idx_id != NULL ) {
free( l_row_idx_id );
}
}
static void libxsmm_sparse_csc_reader( const char* i_csc_file_in,
unsigned int** o_column_idx,
unsigned int** o_row_idx,
REALTYPE** o_values,
unsigned int* o_row_count,
unsigned int* o_column_count,
unsigned int* o_element_count ) {
FILE *l_csc_file_handle;
const unsigned int l_line_length = 512;
char l_line[512/*l_line_length*/+1];
unsigned int l_header_read = 0;
unsigned int* l_column_idx_id = NULL;
unsigned int l_i = 0;
l_csc_file_handle = fopen( i_csc_file_in, "r" );
if ( l_csc_file_handle == NULL ) {
fprintf( stderr, "cannot open CSC file!\n" );
return;
}
while (fgets(l_line, l_line_length, l_csc_file_handle) != NULL) {
if ( strlen(l_line) == l_line_length ) {
fprintf( stderr, "could not read file length!\n" );
return;
}
/* check if we are still reading comments header */
if ( l_line[0] == '%' ) {
continue;
} else {
/* if we are the first line after comment header, we allocate our data structures */
if ( l_header_read == 0 ) {
if ( sscanf(l_line, "%u %u %u", o_row_count, o_column_count, o_element_count) == 3 ) {
/* allocate CSC datastructure matching mtx file */
*o_row_idx = (unsigned int*) malloc(sizeof(unsigned int) * (*o_element_count));
*o_column_idx = (unsigned int*) malloc(sizeof(unsigned int) * (*o_column_count + (size_t)1));
*o_values = (REALTYPE*) malloc(sizeof(double) * (*o_element_count));
l_column_idx_id = (unsigned int*) malloc(sizeof(unsigned int) * (*o_column_count));
/* check if mallocs were successful */
if ( ( *o_row_idx == NULL ) ||
( *o_column_idx == NULL ) ||
( *o_values == NULL ) ||
( l_column_idx_id == NULL ) ) {
fprintf( stderr, "could not allocate sp data!\n" );
return;
}
/* set everything to zero for init */
memset(*o_column_idx, 0, sizeof(unsigned int)*(*o_column_count + (size_t)1));
memset(*o_row_idx, 0, sizeof(unsigned int)*(*o_element_count));
memset(*o_values, 0, sizeof(double)*(*o_element_count));
memset(l_column_idx_id, 0, sizeof(unsigned int)*(*o_column_count));
/* init column idx */
for ( l_i = 0; l_i < (*o_column_count + 1); l_i++ ) {
(*o_column_idx)[l_i] = (*o_element_count);
}
/* init */
(*o_column_idx)[0] = 0;
l_i = 0;
l_header_read = 1;
} else {
fprintf( stderr, "could not csr description!\n" );
return;
}
/* now we read the actual content */
} else {
unsigned int l_row, l_column;
REALTYPE l_value;
/* read a line of content */
#if defined(__EDGE_EXECUTE_F32__)
if ( sscanf(l_line, "%u %u %f", &l_row, &l_column, &l_value) != 3 ) {
fprintf( stderr, "could not read element!\n" );
return;
}
#else
if ( sscanf(l_line, "%u %u %lf", &l_row, &l_column, &l_value) != 3 ) {
fprintf( stderr, "could not read element!\n" );
return;
}
#endif
/* adjust numbers to zero termination */
l_row--;
l_column--;
/* add these values to row and value structure */
(*o_row_idx)[l_i] = l_row;
(*o_values)[l_i] = l_value;
l_i++;
/* handle columns, set id to own for this column, yeah we need to handle empty columns */
l_column_idx_id[l_column] = 1;
(*o_column_idx)[l_column+1] = l_i;
}
}
}
/* close mtx file */
fclose( l_csc_file_handle );
/* check if we read a file which was consistent */
if ( l_i != (*o_element_count) ) {
fprintf( stderr, "we were not able to read all elements!\n" );
return;
}
if ( NULL == l_column_idx_id ) {
fprintf( stderr, "allocating memory for column indexes failed!\n" );
return;
}
/* let's handle empty rows */
for ( l_i = 0; l_i < (*o_column_count); l_i++) {
if ( l_column_idx_id[l_i] == 0 ) {
(*o_column_idx)[l_i+1] = (*o_column_idx)[l_i];
}
}
/* free helper data structure */
if ( l_column_idx_id != NULL ) {
free( l_column_idx_id );
}
}
static edge_mat_desc libxsmm_sparse_csr_reader_desc( const char* i_csr_file_in ) {
FILE *l_csr_file_handle;
const unsigned int l_line_length = 512;
char l_line[512/*l_line_length*/+1];
unsigned int l_header_read = 0;
unsigned int l_row_count = 0;
unsigned int l_col_count = 0;
unsigned int l_num_elements = 0;
edge_mat_desc desc;
desc.row_count = 0;
desc.col_count = 0;
desc.num_elements = 0;
l_csr_file_handle = fopen( i_csr_file_in, "r" );
if ( l_csr_file_handle == NULL ) {
fprintf( stderr, "cannot open CSR file!\n" );
return desc;
}
while (fgets(l_line, l_line_length, l_csr_file_handle) != NULL) {
if ( strlen(l_line) == l_line_length ) {
fprintf( stderr, "could not read file length!\n" );
return desc;
}
/* check if we are still reading comments header */
if ( l_line[0] == '%' ) {
continue;
} else {
/* if we are the first line after comment header, we allocate our data structures */
if ( l_header_read == 0 ) {
if ( sscanf(l_line, "%u %u %u", &l_row_count, &l_col_count, &l_num_elements) == 3 ) {
l_header_read = 1;
desc.row_count = l_row_count;
desc.col_count = l_col_count;
desc.num_elements = l_num_elements;
} else {
fprintf( stderr, "could not csr description!\n" );
return desc;
}
} else {
}
}
}
return desc;
}
static edge_mat_desc libxsmm_sparse_csc_reader_desc( const char* i_csc_file_in ) {
FILE *l_csc_file_handle;
const unsigned int l_line_length = 512;
char l_line[512/*l_line_length*/+1];
unsigned int l_header_read = 0;
unsigned int l_row_count = 0;
unsigned int l_col_count = 0;
unsigned int l_num_elements = 0;
edge_mat_desc desc;
desc.row_count = 0;
desc.col_count = 0;
desc.num_elements = 0;
l_csc_file_handle = fopen( i_csc_file_in, "r" );
if ( l_csc_file_handle == NULL ) {
fprintf( stderr, "cannot open CSC file!\n" );
return desc;
}
while (fgets(l_line, l_line_length, l_csc_file_handle) != NULL) {
if ( strlen(l_line) == l_line_length ) {
fprintf( stderr, "could not read file length!\n" );
return desc;
}
/* check if we are still reading comments header */
if ( l_line[0] == '%' ) {
continue;
} else {
/* if we are the first line after comment header, we allocate our data structures */
if ( l_header_read == 0 ) {
if ( sscanf(l_line, "%u %u %u", &l_row_count, &l_col_count, &l_num_elements) == 3 ) {
l_header_read = 1;
desc.row_count = l_row_count;
desc.col_count = l_col_count;
desc.num_elements = l_num_elements;
} else {
fprintf( stderr, "could not csc description!\n" );
return desc;
}
} else {
}
}
}
return desc;
}
|
