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grid [2018/06/08 14:26]
vodrazka [ÚFAL Grid Engine (LRC)]
grid [2018/06/19 12:11] (current)
popel [Advanced usage]
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 ====== ÚFAL Grid Engine (LRC) ====== ====== ÚFAL Grid Engine (LRC) ======
  
-LRC (Linguistic Research Cluster) is a name of ÚFAL'​s computational grid/​cluster,​ which has (as of 2018/06) about 1416 CPU cores (57 servers + 10 submission heads), with a total 6.33 TiB of RAM. It uses [[https://​en.wikipedia.org/​wiki/​Oracle_Grid_Engine|(Sun/​Oracle/​Son of) Grid Engine]] software (SGE) for job scheduling etc. You can submit many computing tasks (jobs) at once, they will be placed in a queue and once a machine (slot) with the required capabilities (e.g. RAM, number of cores) is available, your job will be executed (scheduled) on this machine. This way we can maximize the usefulness of the computing resources and divide it among users in a fair way.+LRC (Linguistic Research Cluster) is a name of ÚFAL'​s computational grid/​cluster,​ which has (as of 2018/06) about 1728 CPU cores (65 servers + 10 submission heads), with a total 7.TiB of RAM. It uses [[https://​en.wikipedia.org/​wiki/​Oracle_Grid_Engine|(Sun/​Oracle/​Son of) Grid Engine]] software (SGE) for job scheduling etc. You can submit many computing tasks (jobs) at once, they will be placed in a queue and once a machine (slot) with the required capabilities (e.g. RAM, number of cores) is available, your job will be executed (scheduled) on this machine. This way we can maximize the usefulness of the computing resources and divide it among users in a fair way.
  
 If you need GPU processing, see a special page about our [[:gpu|GPU cluster called DLL]] (which is actually a subsystem of LRC with an independent queue ''​gpu-ms.q''​). If you need GPU processing, see a special page about our [[:gpu|GPU cluster called DLL]] (which is actually a subsystem of LRC with an independent queue ''​gpu-ms.q''​).
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 | lucifer[1-10] ​      | Intel(R) Xeon(R) CPU E5620      | 2.4 |   15 |  122  |      | | lucifer[1-10] ​      | Intel(R) Xeon(R) CPU E5620      | 2.4 |   15 |  122  |      |
 | hydra[1-4] ​         | AMD Opteron SSE4 AVX            | 2.6 |   15 |  123  |      | | hydra[1-4] ​         | AMD Opteron SSE4 AVX            | 2.6 |   15 |  123  |      |
 +| orion[1-8] ​         | Intel(R) Xeon(R) CPU E5-2630 v4 | 2.2 |   39 |  122  |      |
  
 Machines from old cluster (do not use!): Machines from old cluster (do not use!):
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 | fireball[1-10] ​     | Intel Xeon           | 3.0 |    4 |   32 | removed | | fireball[1-10] ​     | Intel Xeon           | 3.0 |    4 |   32 | removed |
 | hyperion[1-9] ​      | Intel Xeon           | 3.0 |    4 |   32 | removed | | hyperion[1-9] ​      | Intel Xeon           | 3.0 |    4 |   32 | removed |
-| orion[1-6] ​         | Intel Xeon           | 2.3 |    8 |   32 | removed | 
-| orion[7-10] ​        | Intel Xeon           | 2.0 |    4 |   32 | removed | 
 | tauri[1-10] ​        | Intel Xeon           | 3.0 |    4 |   32 | removed | | tauri[1-10] ​        | Intel Xeon           | 3.0 |    4 |   32 | removed |
 | cosmos ​             | Intel Xeon           | 2.9 |    8 |  256 | migration pending | | cosmos ​             | Intel Xeon           | 2.9 |    8 |  256 | migration pending |
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 ''​qsub **-M** popel@ufal.mff.cuni.cz,​rosa@ufal.mff.cuni.cz **-m** beas''​ ''​qsub **-M** popel@ufal.mff.cuni.cz,​rosa@ufal.mff.cuni.cz **-m** beas''​
 Specify the emails where you want to be notified when the job has been **b** started, **e** ended, **a** aborted or rescheduled,​ **s** suspended. Specify the emails where you want to be notified when the job has been **b** started, **e** ended, **a** aborted or rescheduled,​ **s** suspended.
 +The default is now ''​-m ea''​ (TODO check this) and the default email address is forwarded to you (so there is no need to use ''​-M''​). You can use ''​-m n''​ to override the defaults and send no emails.
  
 ''​qsub **-hold_jid** 121144,​121145''​ (or ''​qsub **-hold_jid** get_src.sh,​get_tgt.sh''​) ''​qsub **-hold_jid** 121144,​121145''​ (or ''​qsub **-hold_jid** get_src.sh,​get_tgt.sh''​)
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 and you execute it now simply with ''​qsub script.sh''​. and you execute it now simply with ''​qsub script.sh''​.
 +
 +=== ~/​.sge_request ===
 +
 +You can change the defaults for any option by creating a personal configuration file ''​~/​.sge_request''​. For example, you can add there a line ''​-m n'',​ so you will get no email notifications (unless overridden from the command line or in-script options).
  
 === Array jobs === === Array jobs ===

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