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paddle/platform/gpu_info.h

@@ -24,7 +24,8 @@ namespace paddle {
 namespace platform {
 
 //! Environment variable: fraction of GPU memory to use on each device.
-const std::string kEnvFractionGpuMemoryToUse = "FRACTION_GPU_MEMORY_TO_USE";
+const std::string kEnvFractionGpuMemoryToUse =
+    "PADDLE_FRACTION_GPU_MEMORY_TO_USE";
 
 //! Get the total number of GPU devices in system.
 int GetDeviceCount();