Configure CMake for CUDA and SSE simulations

This commit adds the initial infrastructure for building accelerated simulation components.

   - Adds the CUDA_ENABLE option and logic to find the CUDA toolkit.

   - Adds the CHANNEL_SSE option to enable SSE-specific code paths.

   - Sets required properties on the SIMU target to allow linking with CUDA-compiled objects.

   - Creates the initial oai_cuda.h header for the public API.

openair1/SIMULATION/CMakeLists.txt

@@ -1,3 +1,4 @@
 if(ENABLE_PHYSIM_TESTS)
   add_subdirectory(tests)
+  add_subdirectory(TOOLS)
 endif()

openair1/SIMULATION/TOOLS/CMakeLists.txt

@@ -0,0 +1,31 @@
+#/*
+# * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+# * contributor license agreements.  See the NOTICE file distributed with
+# * this work for additional information regarding copyright ownership.
+# * The OpenAirInterface Software Alliance licenses this file to You under
+# * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+# * except in compliance with the License.
+# * You may obtain a copy of the License at
+# *
+# *      http://www.openairinterface.org/?page_id=698
+# *
+# * Unless required by applicable law or agreed to in writing, software
+# * distributed under the License is distributed on an "AS IS" BASIS,
+# * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# * See the License for the specific language governing permissions and
+# * limitations under the License.
+# *-------------------------------------------------------------------------------
+# * For more information about the OpenAirInterface (OAI) Software Alliance:
+# *      contact@openairinterface.org
+# */
+
+if(CUDA_ENABLE)
+    add_library(oai_cuda_lib STATIC
+    )
+
+    target_link_libraries(oai_cuda_lib PUBLIC CUDA::toolkit)
+
+    target_include_directories(oai_cuda_lib PUBLIC
+        ${CMAKE_CURRENT_SOURCE_DIR}
+    )
+endif()

openair1/SIMULATION/TOOLS/oai_cuda.h

@@ -0,0 +1,49 @@
+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
+#ifndef __OAI_CUDA_H__
+#define __OAI_CUDA_H__
+
+#include <stdint.h>
+
+
+#ifdef __NVCC__
+#else
+    #include "PHY/TOOLS/tools_defs.h"
+#endif
+
+#ifdef __NVCC__
+    #include <curand_kernel.h>
+    // Kernels go here.
+#endif // __NVCC__
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+    // Cuda function declarations will go here.
+    
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __OAI_CUDA_H__