“Memory Bandwidth and System Balance in HPC Systems” If you are planning to attend the SuperComputing 2016 conference in Salt Lake City next month, be sure to reserve a spot on your calendar for my talk on Wednesday afternoon (4:15pm-5:00pm). I will be talking about the technology and market trends… read more
memory bandwidth
Memory Bandwidth Requirements of the HPL benchmark
The High Performance LINPACK (HPL) benchmark is well known for delivering a high fraction of peak floating-point performance. The (historically) excellent scaling of performance as the number of processors is increased and as the frequency is increased suggests that memory bandwidth has not been a performance limiter. But this does… read more
Memory Bandwidth on Xeon Phi (Knights Corner)
A Quick Note There are a lot of topics that could be addressed here, but this short note will focus on bandwidth from main memory (using the STREAM benchmark) as a function of the number of threads used. Published STREAM Bandwidth Results Official STREAM submission at: http://www.cs.virginia.edu/stream/stream_mail/2013/0015.html Compiled with icc… read more