Hi, Yes, I removed the blanks, and now it seems to be working all the way until when it creates the 4 output directories to dump the results (I guess). Here is the message on the log file: Creating directory lambda_assembly ... done. Creating directory lambda_assembly/lambda_d_log ... done. Creating directory lambda_assembly/lambda_d_results ... done. Creating directory lambda_assembly/lambda_d_info ... done. Creating directory lambda_assembly/lambda_d_chkpt ... done. WARNING WARNING WARNING! It looks like the log directory is on a NFS mount. This will slow down MIRA *considerably* ... by about a factor of 10! If you don't want that, you have three possibilities: 1) RECOMMENDED! Use -DI:lrt to redirect the log directory somewhere else on a local disk or even SSD. 2) POSSIBLE: put the whole project somewhere else and restart MIRA. 3) ABSOLUTELY NOT RECOMMENDED AT ALL: use -MI:sonfs=false to tell MIRA not to stop when it finds the log directory on NFS. Fatal error (may be due to problems of the input data or parameters): "Log directory is on a NFS mount ... but we don't want that." ->Thrown: void Assembly::checkForNFSMountOnLogDir() ->Caught: main Aborting process, probably due to error in the input data or parametrisation. Thanks!, --Zoheir