vendor/bundle/ruby/3.4.0/gems/rouge-4.7.0/lib/rouge/demos/cuda


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#include <cstdio>

__global__ void helloFromGPU() {
    std::printf("Hello World\n");
    __syncthreads();
}

int main() {
    dim3 block(1, 10);
    helloFromGPU<<<1, block>>>();
}