fixed file io for new filetype capability, must be set to parallel for all procs to read dataset
fixed file io for new filetype capability, must be set to parallel for all procs to read dataset

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