MHPCC
MHPCC FY15 Transition and October Maintenance
25 September 2014
On 1 October, 2014 at Midnight (HST), MHPCC will begin the scheduled maintenance period and the Fiscal Year (FY) transition process.

  • All PBS jobs that are queued and will complete before 2359 on September 30, 2014 will be scheduled to run.
  • The Riptide queue will purge all jobs in preparation for the October 1-2, 2014 maintenance period.
  • Riptide will commence operations on October 2, 2014 at 1700 with FY2015 account requests that have been received and processed by the MHPCC DSRC.

If you have any questions about this informational message, please contact the Consolidated Customer Assistance Center (CCAC). The CCAC can be reached via any of the following methods:

- http://centers.hpc.mil/about/contact.html
- 1-877-222-2039
- help@ccac.hpc.mil

Thank you,
MHPCC User Services
HPC Portal Maintenance - Monday October 6th, 2014
23 September 2014
The MHPCC Portal will be down for planned maintenance and upgrades on Monday October 6th, from 0800 AM to 1700 PM (HST).

During this time the Portal will be unavailable.
Please plan accordingly.

Thank You,
Portal Development Team
MHPCC Maintenance - FY15 Rollover - October 1 & 2, 2014
09 September 2014
The MHPCC Riptide system will be undergoing scheduled maintenance on Wednesday, October 1st, 2014 0000 - Thursday, October 2nd, 2014 1700 (HST).

MHPCC will forego the scheduled September maintenance period.

Logins to Riptide will be suspended starting at 2359 (HST).

Please plan accordingly.

Thank You,
MHPCC User Services

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Resource Limits

Disk Limits and Usage

  1. Disk quotas in effect for all users
  2. Mass storage

    MHPCC provides virtually unlimited data storage to its Riptide users via the data archive system. The hostname of the archival system for each platform is available in the ARCHIVE_HOST environment variable. An individual user's directory on this system is available through the ARCHIVE_HOME environment variable. Please consult the online documentation for details on how to use the archive system.

  3. Temporary disk space

    There are several file systems available for temporary disk space:

    RIPTIDE

    Name Description Size Purge Policy
    /scratch Local and unique to each node. 30 Gbytes After each run
    See WORKDIR environment variable Global shared scratch 200 Tbytes Files older than 14 days are purged

  4. How you can help

    Disk usage will be periodically reviewed by MHPCC and if it is determined that any user is consuming an excessive amount of disk space, that user will be notified. For the most part, however, MHPCC encourages all of its users to practice "good neighbor" computing, keeping in mind that the system is shared by hundreds of other users and that disk resources are limited. Some practices which help all users include:

    • Always remove your files from public, shared disk space as soon as you no longer need them. This includes files in any of the scratch file systems.
    • Periodically "clean up" your home directory to remove old and unnecessary files.
    • Check with the MHPCC Help Desk () before installing software in your home directory which might be of general use to other users. In this way, MHPCC can install one version in a single location and prevent the waste of disk space that occurs when multiple versions are installed in various user home directories.

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