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Hi All, I am a newbie to GPU programming. I wonder if anyone can help me with using GPU in .Call in R. Basically, I want to write a function that calcuates the sum of two double type vectors and implement this using GPU. My final goal is to make such an implementation callable from R. (a) First, I wrote a R-C interface handles the R object using .Call (saved as VecAdd_cuda.c

Hi, I am trying to convert a simple CUDA program to LLVM IR using clang 3.0. The program is as follows, #include<stdio.h> #nclude<clang/test/SemaCUDA/cuda.h> __global__ void kernfunc(int *a) { *a=threadIdx.x+blockIdx.x*blockDim.x; } int main() { int *h_a,*d_a,n; n=sizeof(int); h_a=(int*)malloc(n); *h_a=5; cudaMalloc((void*)&d_a,n); cudaMemcpy(d_a,h_a,n,cudaMemcpyHostToDevice);