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Fix og9 "Fix hang when running oacc exec with CUDA 9.0 nvprof" 

Compared to the original og7 version, and still-good og8 version, the og9
version of this patch did get its code altered in a way so that it no longer
resolves the problem it's meant to resolve -- the hang was back.

	libgomp/
	* oacc-init.c (acc_init_1): Move 'acc_init_state' logic to where
	it belongs.
This commit is contained in:
Thomas Schwinge 2020-03-25 17:57:02 +01:00
parent 34fdecb2eb
commit 9ae129017c
2 changed files with 10 additions and 5 deletions
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5
libgomp/ChangeLog.omp
View File

@ -1,3 +1,8 @@
2020-03-25 Thomas Schwinge <thomas@codesourcery.com>
* oacc-init.c (acc_init_1): Move 'acc_init_state' logic to where
it belongs.
2019-11-22 Kwok Cheung Yeung <kcy@codesourcery.com>
* testsuite/libgomp.oacc-fortran/lib-16.f90: Fix async-safety issue.

10
libgomp/oacc-init.c
View File

@ -231,6 +231,11 @@ acc_dev_num_out_of_range (acc_device_t d, int ord, int ndevs)
static struct gomp_device_descr *
acc_init_1 (acc_device_t d, acc_construct_t parent_construct, int implicit)
{
gomp_mutex_lock (&acc_init_state_lock);
acc_init_state = initializing;
acc_init_thread = pthread_self ();
gomp_mutex_unlock (&acc_init_state_lock);
bool check_not_nested_p;
if (implicit)
{
@ -293,11 +298,6 @@ acc_init_1 (acc_device_t d, acc_construct_t parent_construct, int implicit)
struct gomp_device_descr *base_dev, *acc_dev;
int ndevs;
gomp_mutex_lock (&acc_init_state_lock);
acc_init_state = initializing;
acc_init_thread = pthread_self ();
gomp_mutex_unlock (&acc_init_state_lock);
base_dev = resolve_device (d, true);
ndevs = base_dev->get_num_devices_func ();