From 7f08cf6b3c2caa59195dba6609c0b18943a911f9 Mon Sep 17 00:00:00 2001
From: Kai Germaschewski <kai.germaschewski@unh.edu>
Date: Thu, 21 Sep 2023 20:06:06 -0400
Subject: [PATCH] gpu_api: add dummy gpuStream{Create,Destroy,Synchronize} for
 host

One could actually think about having an actual implementation using
threads, but this will be good enough for now.
---
 src/fortran/gpu_api.cxx | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/fortran/gpu_api.cxx b/src/fortran/gpu_api.cxx
index 41593206..728499f4 100644
--- a/src/fortran/gpu_api.cxx
+++ b/src/fortran/gpu_api.cxx
@@ -184,4 +184,16 @@ extern "C" int gpuMemcpyAsync(void* dst, const void* src, size_t bytes,
   return 0;
 }
 
+#elif defined(GTENSOR_DEVICE_HOST)
+
+// dummy implementation, one GPU only
+extern "C" int gpuStreamCreate(gt::stream_view::stream_t* pStream) { return 0; }
+
+extern "C" int gpuStreamDestroy(gt::stream_view::stream_t stream) { return 0; }
+
+extern "C" int gpuStreamSynchronize(gt::stream_view::stream_t stream)
+{
+  return 0;
+}
+
 #endif