Hi, Freesufer experts

My name is wei shao, I have a few questions regarding the parallel computing of recon-all

1 According to documents, freesurfer is OpenMP code , I use -openmp 8 flag like: recon-all -alli -i input.file -s output.file -openmp 8

to tun the recon command on a server, but it doesn't work for me (the running time is very similar for the same subject). Cloud you tell me what is wrong?

2 Can Freesufer take advantage of several GPUs?

3 Is it possible to open few threads to run recon-all on different sections parallelly?

Best,

Wei