Berkely recently released a new version of their BLCR. They already
marked the function cr_request_file as deprecated in BLCR 0.7.3. Now
they removed deprecated functions from libcr API.
Since checkpointing support of OMPI is using cr_request_file, all
checkpointing operations fail with BLCR 0.8.0b2, making a downgrade
to BLCR 0.7.3 necessary.
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