From ab7b1aeacd6ef3eb1c10b913add2ef63a60549ca Mon Sep 17 00:00:00 2001
From: maddyscientist <mclark@nvidia.com>
Date: Mon, 13 Jan 2025 11:16:38 -0800
Subject: [PATCH] Disable user of OpenMP when using nvc++ host compiler

---
 CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 512a7b9baa..abcf27de99 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -404,6 +404,9 @@ endif()
 
 find_package(Threads REQUIRED)
 if(QUDA_OPENMP)
+  if(${CMAKE_CXX_COMPILER_ID} MATCHES "NVHPC")
+    message(FATAL_ERROR "Host compiler (nvc++) not supported with QUDA_OPENMP=ON")
+  endif()
   find_package(OpenMP REQUIRED)
 endif()