checkpointing in cosmomc

Use of Healpix, camb, CLASS, cosmomc, compilers, etc.
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Brian Powell
Posts: 18
Joined: August 08 2006
Affiliation: IPMU, U. of Tokyo

checkpointing in cosmomc

Post by Brian Powell » June 06 2008

Hello --

When resuming a stopped run using the checkpoint = T option, what covmat is used? I am using MPI Learning to resolve the covmat. Do the resumed chains use the latest state of the learned covmat from when the chains stopped, or do they use the original covmat specified in params.ini?

Thanks for any help!

Brian

Antony Lewis
Posts: 1503
Joined: September 23 2004
Affiliation: University of Sussex
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Re: checkpointing in cosmomc

Post by Antony Lewis » June 07 2008

With checkpointing on they use the latest covmat (i.e. the covmat at the last checkpoint).

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