#!/usr/bin/env cmsRun import FWCore.ParameterSet.Config as cms process = cms.Process("LHE") process.source = cms.Source("AlpgenSource", fileNames = cms.untracked.vstring('file:FILENAME') ) process.maxEvents = cms.untracked.PSet(input = cms.untracked.int32(-1)) process.load("FWCore.MessageService.MessageLogger_cfi") process.MessageLogger.cerr.threshold = 'WARNING' process.writer = cms.EDAnalyzer("LHEWriter") process.outpath = cms.EndPath(process.writer)