cuda

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;
+}
+