Hi Dian

you can't run more than one instance of recon-all on the same subject. We are working on openMP-based parallelization and if you have centos 6 you will be able to use it in the upcoming version 5.2.

cheers Bruce

On Sat, 30 Jun 2012, Dian "Oscar" Jiao wrote:

Hi, I am new to freesurfer. It seems recon-all is the most time-consuming command. I tried to run it on a HPC cluster with MPI and got the error "ERROR: it appears that recon-all is already running and re-run" and the job stopped right away. Is the code even parallelized? I had no problem running the same job on a single processor.  ~Oscar