Add simple P2P test

[ROCm/hip commit: 71dac8e37c]

projects/hip/tests/src/CMakeLists.txt

@@ -170,6 +170,7 @@ make_hip_executable (hipFuncSetDeviceFlags hipFuncSetDeviceFlags.cpp)
 make_hip_executable (hipFuncGetDevice hipFuncGetDevice.cpp)
 make_hip_executable (hipFuncSetDevice hipFuncSetDevice.cpp)
 make_hip_executable (hipFuncDeviceSynchronize hipFuncDeviceSynchronize.cpp)
+make_hip_executable (hipPeerToPeer_simple hipPeerToPeer_simple.cpp) 
 
 make_hip_executable (hipMultiThreadDevice hipMultiThreadDevice.cpp) 
 
@@ -217,5 +218,6 @@ make_test(hipFuncDeviceSynchronize " ")
 make_named_test (hipMultiThreadDevice "hipMultiThreadDevice-serial" --tests 0x1) 
 make_named_test (hipMultiThreadDevice "hipMultiThreadDevice-pyramid" --tests 0x4) 
 make_named_test (hipMultiThreadDevice "hipMultiThreadDevice-nearzero" --tests 0x10) 
+make_test(hipPeerToPeer_simple " " )
 
 make_hipify_test(specialFunc.cu )

projects/hip/tests/src/hipPeerToPeer_simple.cpp

@@ -0,0 +1,87 @@
+
+/*
+Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+// Simple test for memset.
+// Also serves as a template for other tests.
+
+#include "hip_runtime.h"
+#include "test_common.h"
+
+
+int main(int argc, char *argv[])
+{
+
+    HipTest::parseStandardArguments(argc, argv, true);
+
+    int deviceCnt;
+
+    HIPCHECK(hipGetDeviceCount(&deviceCnt));
+    HIPCHECK(hipSetDevice(p_gpuDevice));
+
+    int peerDevice = ((p_gpuDevice + 1) % deviceCnt);
+
+    printf ("N=%zu  device=%d peerDevice=%d (%d devices total)\n", N, p_gpuDevice, peerDevice, deviceCnt);
+
+    // Must be on a multi-gpu system:
+    assert (p_gpuDevice != peerDevice);
+
+    int canAccessPeer;
+    HIPCHECK(hipDeviceCanAccessPeer(&canAccessPeer, p_gpuDevice, peerDevice));
+    printf ("dev#%d canAccessPeer:#%d=%d\n", p_gpuDevice, peerDevice, canAccessPeer);
+
+    assert(canAccessPeer);
+
+    HIPCHECK(hipDeviceEnablePeerAccess(peerDevice, 0));
+
+    size_t Nbytes = N*sizeof(float);
+
+    float *A_d0, *A_d1;
+    float *A_h;
+
+    A_h = (float*)malloc(Nbytes);
+    HIPCHECK (hipSetDevice(peerDevice));
+    HIPCHECK (hipMalloc(&A_d1, Nbytes) );
+
+    HIPCHECK (hipSetDevice(p_gpuDevice));
+    HIPCHECK (hipMalloc(&A_d0, Nbytes) );
+
+
+    // Set memory on first device.
+    HIPCHECK (hipSetDevice(p_gpuDevice));
+    HIPCHECK ( hipMemset(A_d0, memsetval, Nbytes) ); 
+
+    // Device0 push to device1, using P2P:
+    HIPCHECK ( hipMemcpy(A_d0, A_d1, Nbytes, hipMemcpyDefault));
+
+    // Copy data back to host:
+    HIPCHECK ( hipMemcpy(A_h, A_d1, Nbytes, hipMemcpyDeviceToHost));
+
+    // Check host data:
+    for (int i=0; i<N; i++) {
+        if (A_h[i] != memsetval) {
+            failed("mismatch at index:%d computed:%02x, memsetval:%02x\n", i, (int)A_h[i], (int)memsetval);
+        }
+    }
+
+    passed();
+
+}