C++ (Cpp) _gnix_pes_on_node Examples

Example #1

File: utils.c Project: ddurnov/libfabric

Test(utils, alps)
{
	int rc;
	uint8_t ptag;
	uint32_t cookie, fmas, cqs, npes, npr;
	void *addr = NULL;

	_gnix_alps_cleanup();

	rc = gnixu_get_rdma_credentials(addr, &ptag, &cookie);
	cr_expect(!rc);

	rc = _gnix_job_fma_limit(0, ptag, &fmas);
	cr_expect(!rc);

	rc = _gnix_job_cq_limit(0, ptag, &cqs);
	cr_expect(!rc);

	rc = _gnix_pes_on_node(&npes);
	cr_expect(!rc);

	rc = _gnix_nics_per_rank(&npr);
	cr_expect(!rc);

	cqs /= GNIX_CQS_PER_EP;
	cr_expect(((fmas > cqs ? cqs : fmas) / npes) == npr);

	_gnix_alps_cleanup();
}

Example #2

File: gnix_util.c Project: a-abraham/libfabric-cray

int _gnix_nics_per_rank(uint32_t *nics_per_rank)
{
	int rc;
	uint32_t npes, fmas, cqs, limiting_resource;

	if (!nics_per_rank) {
		return -FI_EINVAL;
	}

	rc = __gnix_app_init();
	if (rc) {
		GNIX_WARN(FI_LOG_FABRIC,
			  "__gnix_app_init() failed, ret=%d(%s)\n",
			  rc, strerror(errno));
		return rc;
	}

	rc = _gnix_job_fma_limit(gnix_device_id, gnix_app_ptag, &fmas);
	if (rc) {
		return rc;
	}

	rc = _gnix_job_cq_limit(gnix_device_id, gnix_app_ptag, &cqs);
	if (rc) {
		return rc;
	}

	gnix_cq_limit = cqs;
	cqs /= GNIX_CQS_PER_EP;

	rc = _gnix_pes_on_node(&npes);
	if (rc) {
		return rc;
	}

	limiting_resource = fmas > cqs ? cqs : fmas;

	*nics_per_rank = limiting_resource / npes;

	return FI_SUCCESS;
}