In an earlier post (link), I made the off-hand comment that local memory latency was only weakly dependent on CPU and DRAM frequency in Opteron systems. Being of the scientific mindset, I went back and gathered a clean set of data to show the extent to which this assertion is… read more
high performance computing
AMD Opteron Local Memory Latency Chart
Welcome to Dr. Bandwidth’s Blog
Welcome to the University of Texas blog of John D. McCalpin, PhD — aka Dr. Bandwidth. This is the beginning of a serious of posts on the exciting topic of memory bandwidth in computer systems! I hope these posts will serve as a reference for folks interested in the increasingly… read more