Witherspoon

This is the Witherspoon machine layer.

Witherspoon, or AC922, is an IBM POWER9 two-socket, 2U Accelerated Compute Server with up to 6 NVIDIA Tesla GPUs. More information can be found here.

In addition to witherspoon, this layer contains additional machine configurations such as swift. The default machine target is witherspoon, so in order to build a different configuration, or to build witherspoon after building a different one, set the MACHINE environment to the desired configuration name as follows (this is only needed once):

export MACHINE="<machine_configuration>"; \
export BB_ENV_EXTRAWHITE="$BB_ENV_EXTRAWHITE MACHINE"

Then build:

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