Allow nccl downgrades #8429
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Allow nccl downgrades #8429
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This reverts commit 3cb45ba.
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
pietern
approved these changes
Jun 13, 2018
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It turns out the nccl upgrade is not compatible with Caffe2. So we add back the pin, and allow downgrades to let it successfully install.