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Diffstat (limited to 'Modules/CMakeCUDACompilerABI.cu')
-rw-r--r--Modules/CMakeCUDACompilerABI.cu33
1 files changed, 31 insertions, 2 deletions
diff --git a/Modules/CMakeCUDACompilerABI.cu b/Modules/CMakeCUDACompilerABI.cu
index 449a079445..8463e861c0 100644
--- a/Modules/CMakeCUDACompilerABI.cu
+++ b/Modules/CMakeCUDACompilerABI.cu
@@ -2,6 +2,10 @@
# error "A C or C++ compiler has been selected for CUDA"
#endif
+#include <cstdio>
+
+#include <cuda_runtime.h>
+
#include "CMakeCompilerABI.h"
int main(int argc, char* argv[])
@@ -13,6 +17,31 @@ int main(int argc, char* argv[])
#if defined(ABI_ID)
require += info_abi[argc];
#endif
- (void)argv;
- return require;
+ static_cast<void>(argv);
+
+ int count = 0;
+ if (cudaGetDeviceCount(&count) != cudaSuccess || count == 0) {
+ std::fprintf(stderr, "No CUDA devices found.\n");
+ return -1;
+ }
+
+ int found = 0;
+ const char* sep = "";
+ for (int device = 0; device < count; ++device) {
+ cudaDeviceProp prop;
+ if (cudaGetDeviceProperties(&prop, device) == cudaSuccess) {
+ std::printf("%s%d%d", sep, prop.major, prop.minor);
+ sep = ";";
+ found = 1;
+ }
+ }
+
+ if (!found) {
+ std::fprintf(stderr, "No CUDA architecture detected from any devices.\n");
+ // Convince the compiler that the non-zero return value depends
+ // on the info strings so they are not optimized out.
+ return require ? -1 : 1;
+ }
+
+ return 0;
}