X-Git-Url: http://biod.pnpi.spb.ru/gitweb/?p=alexxy%2Fgromacs.git;a=blobdiff_plain;f=src%2Fgromacs%2Fgpu_utils%2Fgpu_utils.cpp;fp=src%2Fgromacs%2Fgpu_utils%2Fgpu_utils.cpp;h=2d8846caa334f827ad6c3ed6846b87694a0c4b17;hp=501d6b625fc8ff9b0aeea6478e64c232e9950a78;hb=c04377fde97785e4fa02bf229b56a67345271be7;hpb=0ce1837c232fa3e99ca90ce12ccb510e0b9a9ba2

diff --git a/src/gromacs/gpu_utils/gpu_utils.cpp b/src/gromacs/gpu_utils/gpu_utils.cpp
index 501d6b625f..2d8846caa3 100644
--- a/src/gromacs/gpu_utils/gpu_utils.cpp
+++ b/src/gromacs/gpu_utils/gpu_utils.cpp
@@ -59,3 +59,26 @@ const char* enumValueToString(GpuApiCallBehavior enumValue)
     };
     return s_gpuApiCallBehaviorNames[enumValue];
 }
+
+bool decideGpuTimingsUsage()
+{
+    if (GMX_GPU_CUDA || GMX_GPU_SYCL)
+    {
+        /* CUDA: timings are incorrect with multiple streams.
+         * This is the main reason why they are disabled by default.
+         * TODO: Consider turning on by default when we can detect nr of streams.
+         *
+         * SYCL: compilers and runtimes change rapidly, so we disable timings by default
+         * to avoid any possible overhead. */
+        return (getenv("GMX_ENABLE_GPU_TIMING") != nullptr);
+    }
+    else if (GMX_GPU_OPENCL)
+    {
+        return (getenv("GMX_DISABLE_GPU_TIMING") == nullptr);
+    }
+    else
+    {
+        // CPU-only build
+        return false;
+    }
+}