Hi! OK for trunk?
commit 7b2f06b7d2fd23b20d81fda8be6ec7453e8b3fe3 Author: Thomas Schwinge <tho...@codesourcery.com> Date: Thu Dec 22 08:30:04 2016 +0100 libgomp nvptx plugin: Debugging output for cuInit failure libgomp/ * plugin/plugin-nvptx.c (nvptx_get_num_devices): Debugging output for cuInit failure. --- libgomp/plugin/plugin-nvptx.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git libgomp/plugin/plugin-nvptx.c libgomp/plugin/plugin-nvptx.c index 3ef48dd..0e1b3e2 100644 --- libgomp/plugin/plugin-nvptx.c +++ libgomp/plugin/plugin-nvptx.c @@ -838,7 +838,11 @@ nvptx_get_num_devices (void) /* PR libgomp/65099: Currently, we only support offloading in 64-bit configurations. */ if (sizeof (void *) != 8) - return 0; + { + GOMP_PLUGIN_debug (0, "Disabling nvptx offloading;" + " only 64-bit configurations are supported\n"); + return 0; + } /* This function will be called before the plugin has been initialized in order to enumerate available devices, but CUDA API routines can't be used @@ -852,7 +856,11 @@ nvptx_get_num_devices (void) /* This is not an error: e.g. we may have CUDA libraries installed but no devices available. */ if (r != CUDA_SUCCESS) - return 0; + { + GOMP_PLUGIN_debug (0, "Disabling nvptx offloading; cuInit: %s\n", + cuda_error (r)); + return 0; + } } CUDA_CALL_ERET (-1, cuDeviceGetCount, &n); Grüße Thomas