Questions tagged [thread-divergence]

I'm studying something about OpenCL and I don't understand very well the concept of "work-item divergence or Divergent Control Flow". As we can see in the picture below, there are some warp or wavefront, depends of the model of the GPU that executes…

I am simulating a Memristor circiut (tran sim). in this simulation, I got received an error called divergence problems.this is the error! How can I find the problem? I mean how can I understand what is wrong with my simulation? this is my circuit…

I implemented some CUDA code. It runs fine but the alogrithm inherently produces a strong thread divergence. This is expected. I will later try to reduce divergence. But for the moment I would be happy to be able to measure it. Is there an easy way…

As the fermi-whitepaper suggests, there are 16 SMs (Streaming Multiprocessors), whereas each of them consists of 32 cores. The gpu executes a thread of a group of 32 threads, called warp. First question: Am I right to assume, that each warp could be…