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Does GPU has full access to DRAM ? Or is it a 2-level access - DRAM then GPU RAM ?
by crudbug 9y ago
Does GPU has full access to DRAM ? Or is it a 2-level access - DRAM then GPU RAM ?
- sgt101 9y agoHello - Interesting to think this through! The GPU has its own bus and I think sends data to its cores according to the CUDA instructions that it is given. I'm hazy about how instructions get to the GPU... I guess the cpu us is executing the OS and the then gets instructions to load the program from disk and then into the execution space in the GPU's memory. I think that the CPU then pushes data into the GPU's memory space for execution and reads results out from the GPU memory according to synchronisation instructions in its program?