Set GMX_GPU_AUTO to FALSE with GMX_GPU defined

Refs #1985, #2357

Change-Id: I5cada97015ee94717ea6eb988b3a84a351f11293

diff --git a/cmake/gmxManageGPU.cmake b/cmake/gmxManageGPU.cmake
index e05511239bf1fa3ba38b72ff4c8f6bd3d4940528..42a7a22e29824e9de7c21ab5f984511a89868102 100644 (file)
--- a/cmake/gmxManageGPU.cmake
+++ b/cmake/gmxManageGPU.cmake
@@ -39,6 +39,8 @@
 # - if CUDA is not found but GPUs were detected issue a warning
 if (NOT DEFINED GMX_GPU)
     set(GMX_GPU_AUTO TRUE CACHE INTERNAL "GPU acceleration will be selected automatically")
+else()
+    set(GMX_GPU_AUTO FALSE CACHE INTERNAL "GPU acceleration will be selected automatically")
 endif()
 option(GMX_GPU "Enable GPU acceleration" OFF)