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// SPDX-License-Identifier: BSD-2-Clause
/* Copyright (C) 2014 - 2021 Intel Corporation. */
#include <memkind.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv)
{
const size_t stream_len = 1024 * 1024;
const size_t filter_len = 1024;
const size_t num_filter = stream_len / filter_len;
size_t i, j;
double *stream = NULL;
double *filter = NULL;
double *result = NULL;
srandom(0);
stream =
(double *)memkind_malloc(MEMKIND_DEFAULT, stream_len * sizeof(double));
if (stream == NULL) {
perror("<memkind>");
fprintf(stderr, "Unable to allocate stream\n");
return errno ? -errno : 1;
}
filter = (double *)memkind_malloc(MEMKIND_HBW, filter_len * sizeof(double));
if (filter == NULL) {
perror("<memkind>");
fprintf(stderr, "Unable to allocate filter\n");
return errno ? -errno : 1;
}
result = (double *)memkind_calloc(MEMKIND_HBW, filter_len, sizeof(double));
if (result == NULL) {
perror("<memkind>");
fprintf(stderr, "Unable to allocate result\n");
return errno ? -errno : 1;
}
for (i = 0; i < stream_len; i++) {
stream[i] = (double)(random()) / (double)(RAND_MAX);
}
for (i = 0; i < filter_len; i++) {
filter[i] = (double)(i) / (double)(filter_len);
}
for (i = 0; i < num_filter; i++) {
for (j = 0; j < filter_len; j++) {
result[j] += stream[i * filter_len + j] * filter[j];
}
}
for (i = 0; i < filter_len; i++) {
fprintf(stdout, "%.6e\n", result[i]);
}
memkind_free(MEMKIND_HBW, result);
memkind_free(MEMKIND_HBW, filter);
memkind_free(MEMKIND_DEFAULT, stream);
return 0;
}
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