Address warnings in CUDA builds (AMReX-Codes#1465)

mohuangrui · Oct 18, 2020 · 4f00520 · 4f00520
1 parent aef02b9
commit 4f00520
Show file tree

Hide file tree

Showing 3 changed files with 5 additions and 7 deletions.
diff --git a/Src/Base/AMReX.cpp b/Src/Base/AMReX.cpp
@@ -148,15 +148,11 @@ amrex::write_to_stderr_without_buffering (const char* str)
     }
 }
 
+#if !AMREX_DEVICE_COMPILE
 namespace {
-//  Having both host and device versions to avoid compiler warning
-AMREX_GPU_HOST_DEVICE
 void
 write_lib_id(const char* msg)
 {
-#if AMREX_DEVICE_COMPILE
-    amrex::ignore_unused(msg);
-#else
     fflush(0);
     const char* const s = "amrex::";
     fwrite(s, strlen(s), 1, stderr);
@@ -165,9 +161,9 @@ write_lib_id(const char* msg)
 	fwrite(msg, strlen(msg), 1, stderr);
 	fwrite("::", 2, 1, stderr);
     }
-#endif
 }
 }
+#endif
 
 void
 amrex::Error (const std::string& msg)

diff --git a/Src/Base/AMReX_FBI.H b/Src/Base/AMReX_FBI.H
@@ -1183,8 +1183,8 @@ FabArray<FAB>::unpack_recv_buffer_gpu (FabArray<FAB>& dst, int dcomp, int ncomp,
     if (N_rcvs == 0) return;
 
     char* pbuffer = recv_data[0];
-    std::size_t szbuffer = 0;
 #if 0
+    std::size_t szbuffer = 0;
     // For linear solver test on summit, this is slower than writing to
     // pinned memory directly on device.
     if (not ParallelDescriptor::UseGpuAwareMpi()) {

diff --git a/Tools/Plotfile/fsnapshot.cpp b/Tools/Plotfile/fsnapshot.cpp
@@ -117,6 +117,7 @@ void main_main()
             }
         }
     }
+    amrex::ignore_unused(numElements);
 
     PlotFileData pf(pltfile);
     int dim = pf.spaceDim();
@@ -178,6 +179,7 @@ void main_main()
         ndir_end = ndir_begin+1;
         ndirs = 1;
     }
+    amrex::ignore_unused(ndirs);
 
     Vector<Box> finebox(3, finedomainbox);
     Vector<MultiFab> datamf(3);