Binary compatibility issues
From: http://pelican.rsvs.ulaval.ca/mediawiki/index.php/CHARMM_tips_and_tricks
If you encounter the message "Headers do not match", it may be caused by :
§ Using a different machine type (x86 vs AMD64)
§ Using a different compilation of CHARMM
Here is the solution :
From the machine which generate the (binary) trajectory file :
open unit 10 unform name merge.trj open unit 20 form name form_merge.trj DYNA FORM FIRST 10 OUTP 20
From the machine which will read this formatted trajectory
open unit 10 form name form_merge.trj open unit 20 unform name merge.trj DYNA UNFO INPUT 10 OUTP 20