uncommented mpi capability
uncommented mpi capability

samuelshaner/openmc,nhorelik/openmc,sxds/opemmc,amandalund/openmc,samuelshaner/openmc,paulromano/openmc,shikhar413/openmc,liangjg/openmc,kellyrowland/openmc,shikhar413/openmc,shikhar413/openmc,mjlong/openmc,amandalund/openmc,walshjon/openmc,samuelshaner/openmc,smharper/openmc,wbinventor/openmc,lilulu/openmc,sxds/opemmc,shikhar413/openmc,kellyrowland/openmc,paulromano/openmc,wbinventor/openmc,liangjg/openmc,walshjon/openmc,johnnyliu27/openmc,smharper/openmc,paulromano/openmc,wbinventor/openmc,amandalund/openmc,mit-crpg/openmc,walshjon/openmc,lilulu/openmc,bhermanmit/openmc,samuelshaner/openmc,mjlong/openmc,shenqicang/openmc,walshjon/openmc,wbinventor/openmc,johnnyliu27/openmc,nhorelik/openmc,smharper/openmc,amandalund/openmc,shenqicang/openmc,johnnyliu27/openmc,johnnyliu27/openmc,smharper/openmc,bhermanmit/openmc,liangjg/openmc,lilulu/openmc,mit-crpg/openmc,mit-crpg/openmc,liangjg/openmc,paulromano/openmc,mit-crpg/openmc