Commit efebee5ab854c78e39d17da2f7e5f521ec9c1fef
2011-07-06T16:47:29
Fix the case where there are no GPUs, and exit if they give errors. If there are no GPUs, set nDevs to 0 not -1 (status is set to an unhelpful -1001 here on my laptop, so we can't rely on a particular status value). Also, if nDevs is -1, exit rather than screwing up later.
diff --git a/main.c b/main.c
index 4eb0eea..a783eac 100644
--- a/main.c
+++ b/main.c
@@ -1458,6 +1458,9 @@ int main (int argc, char *argv[])
#ifdef HAVE_OPENCL
nDevs = clDevicesNum();
+ if (nDevs < 0)
+ return 1;
+
#endif
if (nDevs)
opt_n_threads = 0;
diff --git a/ocl.c b/ocl.c
index 7e5294c..71f5721 100644
--- a/ocl.c
+++ b/ocl.c
@@ -58,10 +58,11 @@ int clDevicesNum() {
cl_uint numPlatforms;
cl_platform_id platform = NULL;
status = clGetPlatformIDs(0, NULL, &numPlatforms);
+ /* If this fails, assume no GPUs. */
if (status != CL_SUCCESS)
{
- applog(LOG_ERR, "Error: Getting Platforms. (clGetPlatformsIDs)");
- return -1;
+ applog(LOG_INFO, "clGetPlatformsIDs failed (no GPU?)");
+ return 0;
}
if (numPlatforms > 0)