Here is a list of all macros with links to the files they belong to:

PARMETISLB_END_DATA : parmetisloadbalancer.h
Parser_CMD_LENGTH : parser.h
Parser_TBLSZ : parser.h
PiecewiseLinFunction_PRECISION : piecewiselinfunction.C
PlaneStress2d_reducedShearIntegration : planstrss.h
PLASTIC_MATERIAL_MAX_ITERATIONS : mplasticmaterial2.C, mplasticmaterial.C, plasticmaterial.C
PM_CHECK_FLAG_AND_REPORT : parametermanager.h
PM_DOFMAN_ERROR_IFNOTSET : parametermanager.h
PM_ELEMENT_ERROR_IFNOTSET : parametermanager.h
PM_UPDATE_PARAMETER : parametermanager.h
PM_UPDATE_PARAMETER_AND_REPORT : parametermanager.h
PM_UPDATE_TEMP_PARAMETER : parametermanager.h
POINT_TOL : fei2dquadlin.C, fei2dtrconst.C, fei2dtrlin.C, fei3dhexaconst.C, fei3dhexalin.C, fei3dhexaquad.C, fei3dquadlin.C, fei3dtetlin.C, fei3dtetquad.C, fei3dtrlin.C, fei3dtrquad.C, fei3dwedgelin.C, fei3dwedgequad.C, feinterpol2d.C, cct.C, dkt.C, qdkt.C, rershell.C, lattice2d_mt.C
PRECAST_CAPACITY_COEFF : hydratinghemomat.C
PRINT_COARSE_ERROR : huertaerrorestimator.C
PRINT_ERROR : huertaerrorestimator.C
PROCESSOR_NAME_LENGTH : parallel.h
pscm_Beta : rcm2.h
pscm_CLOSED : fcm.h, rcm2.h
pscm_Ee : rcm2.h
pscm_Et : rcm2.h
pscm_Ft : rcm2.h
pscm_G : rcm2.h
pscm_Gf : rcm2.h
pscm_JUST_INIT : fcm.h
pscm_NEW_CRACK : rcm2.h
pscm_NEW_FULLY_OPEN_CRACK : rcm2.h
pscm_NONE : fcm.h, rcm2.h
pscm_OPEN : rcm2.h
pscm_RELOADING : rcm2.h
pscm_REOPEN_CRACK : rcm2.h
pscm_SDTransitionCoeff : rcsd.h, rcsde.h
pscm_SOFTENING : fcm.h, rcm2.h
pscm_UNLO_RELO : fcm.h
pscm_UNLOADING : rcm2.h