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An hour of my life disapeared and my beautiful uptime was rebooted and it was fixed by reading http://serverfault.com/questions/98900/is-a-reboot-required-to-refresh-permissio ns-after-adding-a-user-to-a-new-group #/home is mounted from a NFS export [jpyeron at node000 ~]$ cat /tmp/jobs/foo.txt ~jobs/test.txt ~jobs/userstest.txt afasdasd cat: /home/jobs/test.txt: Permission denied Sun May 5 03:20:36 EDT 2013 #### why does this fix the issue? [jpyeron at node000 ~]$ newgrp jobs [jpyeron at node000 ~]$ cat /tmp/jobs/foo.txt ~jobs/test.txt ~jobs/userstest.tx...

Dear R People: I'm having trouble installing Rmpi on a debian machine. Here is my output: bccd at node000:~$ /bccd/home/bccd bccd at node000:~$ bccd at node000:~$ export RMPI_TYPE=OPENMPI bccd at node000:~$ R CMD INSTALL Rmpi_0.5-9.tar.gz * installing to library '/bccd/home/bccd/R/x86_64-pc-linux-gnu-library/2.15' * installing *source* package 'Rmpi' ... checking for gcc... gcc -std=gnu...