@kayvonf: You mentioned in lecture that even though moving memory from CPU main memory to GPU memory is very expensive, the CPU could write data to the L3 cache and the GPU could read it without it ever going to main memory. Would this have been possible for us to do in assignment 2?
jcarchi
@afzhang I thought that was only possible for integrated GPUs?
Good details on the capabilities of the programmable graphics cores that are integrated into modern Intel CPUs is given in this whitepaper:
The Compute Architecture of Intel Processor Graphics Gen7.5, Intel Technical Whitepaper, 2014
Ditto for modern AMD graphics cores:
AMD Graphics Core Next (GCN) Architecture, AMD Technical Whitepaper.
@kayvonf: You mentioned in lecture that even though moving memory from CPU main memory to GPU memory is very expensive, the CPU could write data to the L3 cache and the GPU could read it without it ever going to main memory. Would this have been possible for us to do in assignment 2?
@afzhang I thought that was only possible for integrated GPUs?