input.infile_ = infile.nex 
 input.upload_ckpfile_ = infile.nex.ckp 
 input.upload_mcmcfile_ = infile.nex.mcmc 
 input.upload_sumpfile1_ = infile.nex.run1.p 
 input.upload_sumpfile2_ = infile.nex.run2.p 
 input.upload_sumtfile1_ = infile.nex.run1.t 
 input.upload_sumtfile2_ = infile.nex.run2.t