[ESPResSo] parallel computing

[Mikheil Azatov]

Hi,

I'm using a parallel computing cluster here in UMD to run the simulation on espresso. Usually when I run the code I get this kind of messages(see below). The code still runs and gives me the results, but the problem is that the more CPU's I use the more errors I get and the slower is the simulation which results in very slow performance sometime. I was wondering if anyone ever had similar problems and could help me out here.

[0,2,0]: OpenIB on host compute-f17-2.deepthought.umd.edu was unable to find any HCAs.

Another transport will be used instead, although this may result in

lower performance.

libibverbs: Warning: RLIMIT_MEMLOCK is 32768 bytes.

    This will severely limit memory registrations.

0: Script directory: /software/dt-sw0/espresso/2.2.0b-custom/sys/lib/espresso/scripts

[compute-f17-2.deepthought.umd.edu:08426] [0,0,0] ORTE_ERROR_LOG: Resource busy in file base/pls_base_receive.c at line 127

0: Script directory: /software/dt-sw0/espresso/2.2.0b-custom/sys/lib/espresso/scripts

0: Script directory: /software/dt-sw0/espresso/2.2.0b-custom/sys/lib/espresso/scripts

[compute-f17-2.deepthought.umd.edu:08426] [0,0,0] ORTE_ERROR_LOG: Resource busy in file base/pls_base_receive.c at line 127

[compute-f17-2.deepthought.umd.edu:08426] [0,0,0] ORTE_ERROR_LOG: Resource busy in file base/pls_base_receive.c at line 127

Thanks, Mike