only master prints core map info
only master prints core map info

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