From bdbc157ad3fef62bf93376eaf2aecb56acadd99a Mon Sep 17 00:00:00 2001
From: Anna Wellmann <a.wellmann@tu-braunschweig.de>
Date: Tue, 24 Aug 2021 11:51:11 +0200
Subject: [PATCH] Remove default streams form exchange functions

prevents accidental use of the null stream
---
 .../VirtualFluids_GPU/Communication/ExchangeData27.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/gpu/VirtualFluids_GPU/Communication/ExchangeData27.h b/src/gpu/VirtualFluids_GPU/Communication/ExchangeData27.h
index 99556adb0..d268d096c 100644
--- a/src/gpu/VirtualFluids_GPU/Communication/ExchangeData27.h
+++ b/src/gpu/VirtualFluids_GPU/Communication/ExchangeData27.h
@@ -18,15 +18,15 @@ extern "C" void exchangePostCollDataGPU27(Parameter* para, vf::gpu::Communicator
 // extern "C" void exchangePreCollDataYGPU27(Parameter *para, vf::gpu::Communicator *comm, CudaMemoryManager *cudaManager, int level);
 // extern "C" void exchangePreCollDataZGPU27(Parameter* para, vf::gpu::Communicator* comm, CudaMemoryManager* cudaManager, int level);
 
-extern "C" void prepareExchangePostCollDataXGPU27(Parameter *para, int level, int streamIndex = -1);
+extern "C" void prepareExchangePostCollDataXGPU27(Parameter *para, int level, int streamIndex);
 extern "C" void exchangePostCollDataXGPU27(Parameter *para, vf::gpu::Communicator *comm, CudaMemoryManager *cudaManager,
-                                           int level, int streamIndex = -1);
-extern "C" void prepareExchangePostCollDataYGPU27(Parameter *para, int level, int streamIndex = -1);
+                                           int level, int streamIndex);
+extern "C" void prepareExchangePostCollDataYGPU27(Parameter *para, int level, int streamIndex);
 extern "C" void exchangePostCollDataYGPU27(Parameter *para, vf::gpu::Communicator *comm, CudaMemoryManager *cudaManager,
-                                           int level, int streamIndex = -1);
-extern "C" void prepareExchangePostCollDataZGPU27(Parameter *para, int level, int streamIndex = -1);
+                                           int level, int streamIndex);
+extern "C" void prepareExchangePostCollDataZGPU27(Parameter *para, int level, int streamIndex);
 extern "C" void exchangePostCollDataZGPU27(Parameter *para, vf::gpu::Communicator *comm, CudaMemoryManager *cudaManager,
-                                           int level, int streamIndex = -1);
+                                           int level, int streamIndex);
 //////////////////////////////////////////////////////////////////////////
 //3D domain decomposition convection diffusion
 extern "C" void exchangePreCollDataADXGPU27(Parameter* para, vf::gpu::Communicator* comm, CudaMemoryManager* cudaManager, int level);
-- 
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