Problem with dccm()

[rydog]

I'm using R: R version 3.2.1 (2015-06-18) -- "World-Famous Astronaut" Copyright (C) 2015 The R Foundation for Statistical Computing Platform: x86_64-apple-darwin10.8.0 (64-bit)

I'm using OSX 10.8.5.

I was having problems doing network analysis so I updated my bio3d package using the install_bitbucket function. My updated version is: Version: 2.2-3 Date: 2015-09-04

I'm trying to do some of the things listed here: http://thegrantlab.org/bio3d/tutorials/protein-structure-networks

After inputting an (CA-only) PDB (as variable pdb), I can run: modes<-nma(pdb) with no problem. When I run dccm(modes) I get scary-looking errors (in red text) that are continuously generated:

__THE_PROCESS_HAS_FORKED_AND_YOU_CANNOT_USE_THIS_COREFOUNDATION_FUNCTIONALITY___YOU_MUST_EXEC__() to debug.
The process has forked and you cannot use this CoreFoundation functionality safely. You MUST exec().
Break on 

I am using the most-updated binary available for my version of OSX. Any suggestions how I can get everything harmonizing?

[Xinqiu Yao]

Hi,

Not sure what exactly happened but it seemed related to the "multicore" functionality in dccm(). Can you try dccm(modes, ncore=1) and see if it solves the problem? Let me know if you still get errors.

[rydog]

Running dccm() with ncore=1 solves the problem, at least in one test.