diff options
| -rw-r--r-- | cuda/Makefile | 6 | ||||
| -rw-r--r-- | cuda/memcpy.cu | 17 | ||||
| -rw-r--r-- | cuda/meminfo.cu | 14 |
3 files changed, 37 insertions, 0 deletions
diff --git a/cuda/Makefile b/cuda/Makefile new file mode 100644 index 0000000..17b5b6b --- /dev/null +++ b/cuda/Makefile @@ -0,0 +1,6 @@ +memcpy: memcpy.cu + nvcc memcpy.cu + +meminfo: meminfo.cu + nvcc meminfo.cu + diff --git a/cuda/memcpy.cu b/cuda/memcpy.cu new file mode 100644 index 0000000..e2d5781 --- /dev/null +++ b/cuda/memcpy.cu @@ -0,0 +1,17 @@ +#include <iostream> + +using namespace std; + +int main(void) +{ + void* ptr = NULL; + float* f = new float[1]; + cudaMalloc(&ptr, sizeof(float)*1); + int r = cudaMemcpy(ptr, f, sizeof(float) * 1, cudaMemcpyHostToDevice); + cout << r << endl; + cout << cudaSuccess << endl; + cout << cudaErrorInvalidValue << endl; + cout << cudaErrorInvalidDevicePointer << endl; + cout << cudaErrorInvalidMemcpyDirection << endl; +} + diff --git a/cuda/meminfo.cu b/cuda/meminfo.cu new file mode 100644 index 0000000..aebe709 --- /dev/null +++ b/cuda/meminfo.cu @@ -0,0 +1,14 @@ +#include <iostream> + +using namespace std; + +int +main(void) +{ + size_t free_bytes; + size_t total_bytes; + cudaSetDevice(0); + cudaMemGetInfo( &free_bytes, &total_bytes ); + cerr << "[cnn] Memory Free (MB): " << free_bytes/1024/1024 << "/" << total_bytes/1024/1024 << endl << endl; +} + |