Added Astaroth 2.0

src/core/CMakeLists.txt

@@ -0,0 +1,70 @@
+########################################
+##  CMakeLists.txt for Astaroth Core  ##
+########################################
+
+#----------------------Find CUDA-----------------------------------------------#
+
+find_package(CUDA)
+if (NOT CUDA_FOUND)
+    # find_package(CUDA REQUIRED) gives a confusing error message if it fails,
+    # therefore we print the reason here explicitly
+    message(FATAL_ERROR "CUDA not found")
+endif()
+
+
+#----------------------CUDA settings-------------------------------------------#
+
+set(CUDA_SEPARABLE_COMPILATION ON)
+set(CUDA_PROPAGATE_HOST_FLAGS ON)
+
+# CUDA_BUILD_CUBIN requires that we're compiling for only one architecture
+# set(CUDA_BUILD_CUBIN ON)
+
+
+#----------------------Setup CUDA compilation flags----------------------------#
+
+# Generate code for the default architecture (Pascal)
+set(CUDA_ARCH_FLAGS -gencode arch=compute_37,code=sm_37
+                    -gencode arch=compute_50,code=sm_50 
+                    -gencode arch=compute_60,code=sm_60 
+                    -gencode arch=compute_61,code=sm_61 
+                    -lineinfo 
+                    --maxrregcount=255
+                    -ftz=true 
+                    -std=c++11) #--maxrregcount=255 -ftz=true #ftz = flush denormalized floats to zero
+# -Xptxas -dlcm=ca opt-in to cache all global loads to L1/texture cache
+# =cg to opt out
+
+# Additional CUDA optimization flags
+if (CMAKE_BUILD_TYPE MATCHES RELEASE)
+    # Doesn't set any additional flags, see CUDA_NVCC_FLAGS_DEBUG below on how
+    # to add more
+    set(CUDA_NVCC_FLAGS_RELEASE ${CUDA_NVCC_FLAGS_RELEASE})
+endif()
+
+# Additional CUDA debug flags
+if (CMAKE_BUILD_TYPE MATCHES DEBUG)
+    # The debug flags must be set inside this if clause, since either CMake 3.5
+    # or nvcc 7.5 is bugged:
+    # CMake converts these into empty strings when doing RELEASE build, but nvcc
+    # 7.5 fails to parse empty flags.
+    set(CUDA_NVCC_FLAGS_DEBUG ${CUDA_NVCC_FLAGS_DEBUG};
+                               --device-debug;
+                               --generate-line-info;
+                               --ptxas-options=-v)
+endif()
+
+set(CUDA_NVCC_FLAGS "${CUDA_NVCC_FLAGS};${CUDA_ARCH_FLAGS}")
+
+
+message("CUDA_NVCC_FLAGS: " ${CUDA_NVCC_FLAGS})
+
+
+#------------------Compile and create a static library-------------------------#
+file(GLOB CUDA_SOURCES "*.cu" "kernels/*.cu")
+
+# Use -fPIC if -fpic not supported. Some quick non-scientific tests:
+# Without fpic: 4.94 user, 4.04 system, 0:09.88 elapsed
+# With fpic: 4.96 user, 4.02 system, 0:09.90 elapsed
+# With fPIC: 4.94 user, 4.05 system, 0:10.23 elapsed
+CUDA_ADD_LIBRARY(astaroth_core STATIC ${CUDA_SOURCES} OPTIONS --compiler-options "-fpic")