diff --git a/Grid/threads/Accelerator.cc b/Grid/threads/Accelerator.cc
index 70f469b0..be6efe93 100644
--- a/Grid/threads/Accelerator.cc
+++ b/Grid/threads/Accelerator.cc
@@ -120,7 +120,7 @@ hipStream_t computeStream;
 void acceleratorInit(void)
 {
   int nDevices = 1;
-  hipGetDeviceCount(&nDevices);
+  auto discard = hipGetDeviceCount(&nDevices);
   gpu_props = new hipDeviceProp_t[nDevices];
 
   char * localRankStr = NULL;
@@ -147,7 +147,7 @@ void acceleratorInit(void)
 #define GPU_PROP_FMT(canMapHostMemory,FMT)     printf("AcceleratorHipInit:   " #canMapHostMemory ": " FMT" \n",prop.canMapHostMemory);
 #define GPU_PROP(canMapHostMemory)             GPU_PROP_FMT(canMapHostMemory,"%d");
     
-    hipGetDeviceProperties(&gpu_props[i], i);
+    discard = hipGetDeviceProperties(&gpu_props[i], i);
     hipDeviceProp_t prop; 
     prop = gpu_props[i];
     totalDeviceMem = prop.totalGlobalMem;
@@ -184,13 +184,13 @@ void acceleratorInit(void)
   }
   int device = rank;
 #endif
-  hipSetDevice(device);
-  hipStreamCreate(&copyStream);
-  hipStreamCreate(&computeStream);
+  discard = hipSetDevice(device);
+  discard = hipStreamCreate(&copyStream);
+  discard = hipStreamCreate(&computeStream);
   const int len=64;
   char busid[len];
   if( rank == world_rank ) { 
-    hipDeviceGetPCIBusId(busid, len, device);
+    discard = hipDeviceGetPCIBusId(busid, len, device);
     printf("local rank %d device %d bus id: %s\n", rank, device, busid);
   }
   if ( world_rank == 0 )  printf("AcceleratorHipInit: ================================================\n");
diff --git a/Grid/threads/Accelerator.h b/Grid/threads/Accelerator.h
index d26f261e..66ceb269 100644
--- a/Grid/threads/Accelerator.h
+++ b/Grid/threads/Accelerator.h
@@ -397,7 +397,7 @@ NAMESPACE_BEGIN(Grid);
 inline void acceleratorMem(void)
 {
   size_t free_t,total_t,used_t;
-  hipMemGetInfo(&free_t,&total_t);
+  auto discard = hipMemGetInfo(&free_t,&total_t);
   used_t=total_t-free_t;
   std::cout << " MemoryManager : GPU used "<<used_t<<" free "<<free_t<< " total "<<total_t<<std::endl;
 }