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Because no powerpc builds of ray are available on conda, we must build ray ourselves. However ray builds with gcc 8 (the current version available on HAL) have a bug which throws a segfault when trying to initialize the ray cluster. We must use at least gcc 9 then for the build, however because ray uses bazel which doesn't operate well with non-standard compilers, we must build a customized version of bazel with needed utilities statically linked. Then we can build ray using gcc 9 properly.
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