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mhtess / rwebppl

RWebPPL, an R interface to Webppl http://webppl.org
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Allow multiple chains to be run #10

Closed mhtess closed 8 years ago

mhtess commented 8 years ago

Bonus if this could be done in parallel.

Minimally, this will involve running multiple system calls, outputting the data to different temp files, and reading and parsing the temp files, appending the chain #

mhtess commented 8 years ago

Per our discussion today, we could do this potentially by having the rwebppl js take the temp_file output filename as input argument. Then we could wrap the rwebppl R function within a for loop or a paralleled version, passing a new filename for each chain. We could concatenate the output so that an ERP becomes a data frame that looks like:

support | probs | chain
-------------------------
a | 0.25 | 1
...
a | 0.23 | 2
...

The halting conditions should probably be by default to have the program halt if one of the chains errors out. It would be nice to have a force=T option to change the halting condition to wait for each chain to either error or complete, and then concatenate the output for those chains that completed.