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Merged
zatkins-dev merged 1 commit into from
Aug 11, 2026
Merged

cuda - save cuda dir and use with rust compilation #2005

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6 changes: 3 additions & 3 deletions Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -586,9 +586,9 @@ endif
CUDA_LIB_DIR_STUBS := $(CUDA_LIB_DIR)/stubs
CUDA_BACKENDS = /gpu/cuda/ref /gpu/cuda/shared /gpu/cuda/gen
ifneq ($(CUDA_LIB_DIR),)
$(cuda-all.c:%.c=$(OBJDIR)/%.o) $(cuda-all.c:%=%.tidy) $(cuda-all.c:%=%.tidy-fix) $(cuda-all.h:%=%.tidy-fix) : CPPFLAGS += -I$(CUDA_DIR)/include
$(cuda-all.cpp:%.cpp=$(OBJDIR)/%.o) $(cuda-all.cpp:%=%.tidy) $(cuda-all.cpp:%=%.tidy-fix) $(cuda-all.hpp:%=%.tidy-fix) : CPPFLAGS += -I$(CUDA_DIR)/include
$(cuda-all.cu:%.cu=$(OBJDIR)/%.o) : CPPFLAGS += -I$(CUDA_DIR)/include
$(cuda-all.c:%.c=$(OBJDIR)/%.o) $(cuda-all.c:%=%.tidy) $(cuda-all.c:%=%.tidy-fix) $(cuda-all.h:%=%.tidy-fix) : CPPFLAGS += -I$(CUDA_DIR)/include -DCEED_CUDA_DIR=\"$(CUDA_DIR)\"
$(cuda-all.cpp:%.cpp=$(OBJDIR)/%.o) $(cuda-all.cpp:%=%.tidy) $(cuda-all.cpp:%=%.tidy-fix) $(cuda-all.hpp:%=%.tidy-fix) : CPPFLAGS += -I$(CUDA_DIR)/include -DCEED_CUDA_DIR=\"$(CUDA_DIR)\"
$(cuda-all.cu:%.cu=$(OBJDIR)/%.o) : CPPFLAGS += -I$(CUDA_DIR)/include -DCEED_CUDA_DIR=\"$(CUDA_DIR)\"
PKG_LIBS += -L$(abspath $(CUDA_LIB_DIR)) -lcudart -lnvrtc -lcuda -lcublas
PKG_STUBS_LIBS += -L$(CUDA_LIB_DIR_STUBS)
LIBCEED_CONTAINS_CXX = 1
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7 changes: 5 additions & 2 deletions backends/cuda/ceed-cuda-compile.cpp
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Expand Up @@ -28,6 +28,8 @@

#include "ceed-cuda-common.h"

const char *CeedCudaDir = CEED_CUDA_DIR;

#define CeedChk_Nvrtc(ceed, x) \
do { \
nvrtcResult result = static_cast<nvrtcResult>(x); \
Expand Down Expand Up @@ -389,8 +391,9 @@ static int CeedCompileCore_Cuda(Ceed ceed, const char *source, const char *name,

// Compile wrapper kernel
CeedCallCuda(ceed, cudaGetDeviceProperties(&prop, ceed_data->device_id));
command = std::string(llvm_cxx) + " -flto=thin --cuda-gpu-arch=sm_" + std::to_string(prop.major) + std::to_string(prop.minor) +
" --cuda-device-only -emit-llvm -S " + filename_base + "_0_source.cu -o " + filename_base + "_1_wrapped.ll ";
command = std::string(llvm_cxx) + " --cuda-path=" + std::string(CeedCudaDir) + " -flto=thin --cuda-gpu-arch=sm_" + std::to_string(prop.major) +
std::to_string(prop.minor) + " --cuda-device-only -emit-llvm -S " + filename_base + "_0_source.cu -o " + filename_base +
"_1_wrapped.ll ";
command += opts[4];
CeedCallSystem(ceed, command.c_str(), "JiT kernel source");
CeedCallSystem(ceed, (std::string("chmod 0777 ") + filename_base + "_1_wrapped.ll").c_str(), "update JiT file permissions");
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