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takyon [soylentnews.org] writes:

Cray supercomputers with AMD Epyc [wikipedia.org] processors will start shipping in the summer [theregister.co.uk]:

Cray is adding an AMD processor option to its CS500 line of clustered supercomputers.

The CS500 supports more than 11,000 nodes which can use Intel Xeon SP CPUs, optionally accelerated by Nvidia Tesla GPUs or Intel Phi co-processors. Intel Stratix FPGA acceleration is also supported.

There can be up to 72 nodes in a rack, interconnected by EDR/FDR InfiniBand or Intel's OmniPath fabric.

Cray has now added an AMD Epyc 7000 [theregister.co.uk] option to the CPU mix:

• Systems provide four dual-socket nodes in a 2U chassis
• Each node supports two PCIe 3.0 x 16 slots (200Gb network capability) and HDD/SSD options
• Epyc 7000 processors support up to 32 cores and eight DDR4 memory channels per socket

Top-of-the-line Epyc chips have 32 cores and 64 threads. An upcoming generation of 7nm Epyc chips is rumored to have up to 48 or 64 cores [wccftech.com], using 6 or 8 cores per Core Complex (CCX) instead of the current 4.

Related: AMD Epyc 7000-Series Launched With Up to 32 Cores [soylentnews.org]
Intel's Skylake-SP vs AMD's Epyc [soylentnews.org]
Data Centers Consider Intel's Rivals [soylentnews.org]

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