mirror of
https://github.com/OpenMathLib/OpenBLAS
synced 2026-06-15 07:51:43 +08:00
7750d507ff
most functions are using exec_blas but dgetrf uses exec_blas_async directly and the behavior after fork is not the same. It's currently deadlocking.
95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
/*****************************************************************************
|
|
Copyright (c) 2011-2025, The OpenBLAS Project
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are
|
|
met:
|
|
|
|
1. Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
|
|
2. Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in
|
|
the documentation and/or other materials provided with the
|
|
distribution.
|
|
3. Neither the name of the OpenBLAS project nor the names of
|
|
its contributors may be used to endorse or promote products
|
|
derived from this software without specific prior written
|
|
permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
|
|
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
**********************************************************************************/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
#include <errno.h>
|
|
#include <cblas.h>
|
|
#include "openblas_utest.h"
|
|
|
|
static void* xmalloc(size_t n)
|
|
{
|
|
void* tmp;
|
|
tmp = calloc(1, n);
|
|
if (tmp == NULL) {
|
|
fprintf(stderr, "Failed to allocate memory for the testcase.\n");
|
|
exit(1);
|
|
} else {
|
|
return tmp;
|
|
}
|
|
}
|
|
|
|
CTEST(fork, safety_after_fork_async)
|
|
{
|
|
#ifdef __UCLIBC__
|
|
#if !defined __UCLIBC_HAS_STUBS__ && !defined __ARCH_USE_MMU__
|
|
exit(0);
|
|
#endif
|
|
#endif
|
|
#ifndef BUILD_DOUBLE
|
|
exit(0);
|
|
#else
|
|
blasint n = 200;
|
|
blasint info;
|
|
blasint i;
|
|
|
|
blasint *ipiv;
|
|
double *arr;
|
|
|
|
pid_t fork_pid;
|
|
|
|
arr = xmalloc(sizeof(*arr) * n * n);
|
|
ipiv = xmalloc(sizeof(*ipiv) * n);
|
|
|
|
// array is an identity matrix
|
|
for (i = 0; i < n*n; i += n + 1) {
|
|
arr[i] = 1.0;
|
|
}
|
|
|
|
fork_pid = fork();
|
|
if (fork_pid == -1) {
|
|
perror("fork");
|
|
CTEST_ERR("Failed to fork process.");
|
|
} else if (fork_pid == 0) {
|
|
exit(0);
|
|
} else {
|
|
// Wait for the child to finish and check the exit code.
|
|
int child_status = 0;
|
|
pid_t wait_pid = wait(&child_status);
|
|
ASSERT_EQUAL(wait_pid, fork_pid);
|
|
ASSERT_EQUAL(0, WEXITSTATUS (child_status));
|
|
}
|
|
BLASFUNC(dgetrf)(&n, &n, arr, &n, ipiv, &info);
|
|
#endif
|
|
}
|