From 78672bd8fdff27789807b81d787202d3b8c3887a Mon Sep 17 00:00:00 2001 From: Thomas Schwinge Date: Wed, 24 May 2017 08:59:05 +0200 Subject: [PATCH] libgomp nvptx plugin: Debugging output when disabling nvptx offloading libgomp/ * plugin/plugin-nvptx.c (nvptx_get_num_devices): Debugging output when disabling nvptx offloading. From-SVN: r248400 --- libgomp/ChangeLog | 5 +++++ libgomp/plugin/plugin-nvptx.c | 12 ++++++++++-- 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog index 32f8bf10b2b..14e95ef9ba9 100644 --- a/libgomp/ChangeLog +++ b/libgomp/ChangeLog @@ -1,3 +1,8 @@ +2017-05-24 Thomas Schwinge + + * plugin/plugin-nvptx.c (nvptx_get_num_devices): Debugging output + when disabling nvptx offloading. + 2017-05-23 Thomas Schwinge * testsuite/libgomp.oacc-c-c++-common/kernels-loop-2.c: Update. diff --git a/libgomp/plugin/plugin-nvptx.c b/libgomp/plugin/plugin-nvptx.c index 3ef48dd5d82..0e1b3e2d4f3 100644 --- a/libgomp/plugin/plugin-nvptx.c +++ b/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); -- 2.30.2