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 ====== ÚFAL Grid Engine (LRC) ======
-LRC (Linguistic Research Cluster) is a name of ÚFAL's CPU computational grid/cluster, which has (as of 2017/09) about 1600 CPU cores (115 servers + 2 submission heads), with a total 10 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.
+LRC (Linguistic Research Cluster) is a name of ÚFAL's computational grid/cluster, which has (as of 2017/09) about 1600 CPU cores (115 servers + 2 submission heads), with a total 10 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.
 If you need GPU processing, see a special page about our [[:gpu|GPU cluster called DLL]] (which is actually a subsystem of LRC with independent queue ''gpu.q'').
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 ===== List of Machines =====
 The list has been updated 2017/09. All machines have Ubuntu 14.04.
+Some machines are at Malá Strana (ground floor, new server room built from Lindat budget), some are at Troja (5 km north-east).
+If you need to quickly distinguish which machine is located where, you can use your knowledge of [[https://en.wikipedia.org/wiki/Trojan_War|Trojan war]]-related heroes, ''qhost -q'', or the tables below.
-==== Trója (troja-all.q) ====
+==== Troja (troja-all.q) ====
+^ Name                ^ CPU type            ^ GHz ^cores ^RAM(GB)^ note ^
+| achilles[1-8]       | Intel               | 3.2 |   32 |  128 |  |
+| hector[1-8]         | Intel               | 1.3 |   32 |  128 |  |
+| helena[1-8]         | Intel               | 2.6 |   32 |  128 |  |
+| paris[1-8]          | Intel               | 2.4 |   32 |  128 |  |
 ==== MS = Malá Strana (ms-all.q) ====
 ^ Name                ^ CPU type            ^ GHz ^cores ^RAM(GB)^ note ^
-| andromeda[1-13]     | 2xCore4 AMD Opteron | 2.8 |    8 |   32 |  |
+| andromeda[1-13]     | AMD 2xCore4 Opteron | 2.8 |    8 |   32 |  |
-| fireball[1-10]      |??2xCore4 Intel Xeon | 3.0 |    4 |   32 |  |
+| hydra[1-4]          | AMD                 | 2.6 |   16 |  128 |  |
-| hyperion[1-10]      | 2xCore2 Intel Xeon  | 3.0 |    4 |   32 |  |
+| fireball[1-10]      |Intel ??2xCore4 Xeon | 3.0 |    4 |   32 |  |
-| lucifer[1-10]       |??2xCore4 Intel Xeon | 2.4 |   16 |  128 |  |
+| hyperion[1-9]       | Intel 2xCore2 Xeon  | 3.0 |    4 |   32 |  |
-| orion[1-10]         | 2xCore4 Intel Xeon  | 2.3 |    8 |   32 |  |
+| lucifer[1-10]       |Intel ??2xCore4 Xeon | 2.4 |   16 |  128 |  |
-| tauri[1-10]         |??2xCore4 Intel Xeon | 3.0 |    4 |   32 |  |
+| orion[1-6]          | Intel 2xCore4 Xeon  | 2.3 |    8 |   32 |  |
-| cosmos              | 4xCore2 Intel Xeon  | 2.9 |    8 |  256 |  |
+| orion[7-10]         | Intel               | 2.0 |    4 |   32 |  |
-| belzebub            | 8xCore4 Intel Xeon  | 2.9 |   32 |  256 |  |
+| tauri[1-10]         |Intel ??2xCore4 Xeon | 3.0 |    4 |   32 |  |
-| iridium             |??2xCore4 Intel Xeon | 1.9 |   16 |  512 | also in ''gpu.q'' |
+| cosmos              | Intel 4xCore2 Xeon  | 2.9 |    8 |  256 |  |
-| twister[1,2]        | 2xCore4 Intel Xeon  | 2.4 |    8 |   48 | also in ''gpu.q'' |
+| belzebub            | Intel 8xCore4 Xeon  | 2.9 |   32 |  256 |  |
+| iridium             |Intel ??2xCore4 Xeon | 1.9 |   16 |  512 | also in ''gpu.q'' |
+| twister[1,2]        | Intel 2xCore4 Xeon  | 2.4 |    8 |   48 | also in ''gpu.q'' |
 === Outside LRC cluster (but located as MS) ===
 ^ Name                ^ CPU type            ^ GHz ^cores ^ RAM(GB)^ note  ^
-| lrc[1,2]            | Intel???            | 2.3 |    4 |   45 | **no computing here**, just submit jobs |
+| lrc[1,2]            | Intel               | 2.3 |    4 |   45 | **no computing here**, just submit jobs |
 | pandora[1-10]       | 2xCore2 Intel Xeon  | 2.6 |      |   16 | special cluster&queue ''ms-guests.q''   |
-| sol[1-8,11-13]      | 2xCore4 AMD Opteron | 2.0 |      |   16 | you can ssh here and compute |
+| sol[1-5]            | Intel               | 2.6 |    4 |   16 | you can ssh here and compute |
+| sol[6-8]            | Intel               | 2.0 |    8 |   16 | you can ssh here and compute |
+**lrc machines** are so called heads of the cluster. **No computation is allowed here** (i.e. no CPU-intensive, disk-intensive or RAM-intensive computation; very simple scripts are OK). You should just ssh to ''lrc1'' or ''lrc2'' and submit your jobs as described bellow.
+Alternatively, you can ssh to one of the **sol machines** and submit jobs from here. It is allow to do computing, which is useful e.g. when you have a script which submits your jobs, but it also collects statistics from the jobs outputs (and possibly submits new jobs conditioned on the statistics). However, The sol machines are relatively slow and may be occupied by your colleagues, so for bigger (longer) tasks, always prefer submission as separate jobs.
+The **pandora machines** are in a special cluster (not accessible from lrc) and queue **ms-guests.q** available for our colleagues from KSVI and for students of [[http://ufal.mff.cuni.cz/courses/npfl102|Data intensive computing]] (see the 2016 handouts if you missed the course).
-**pandora machines** are in a special cluster and queue **ms-guests.q** available for our colleagues from KSVI and for students of [[http://ufal.mff.cuni.cz/courses/npfl102|Data intensive computing]] (see the 2016 handouts if you missed the course).
+fronty výpočtů, které se odesílají na výpočetní stroje v clusteru. Na hlavě se nemají pouštět žádné náročné výpočty a naopak na ostatní stroje v clusteru se mají výpočty odesílat výhradně prostřednictvím hlavy. Hlava má 2 procesory Intel Pentium D 3 GHz a 1 GB paměti. Ve skutečnosti existují hlavy dvě - lrc1 a lrc2, které sdílí IP adresu lrc.ufal.hide.ms.mff.cuni.cz. V případě výpadku jedné z hlav, přebírá kontrolu ta druhá.
-**sol machines** are for us - we can ssh there, submit jobs and also do computing (e.g. collecting statistics from the submitted jobs).
-**lrc machines** are so called heads of the cluster. **No computation is allowed here**.
-.ufal.hide.ms.mff.cuni.cz: hlava clusteru. To znamená, že neslouží k výpočtům, ale ke správě fronty výpočtů, které se odesílají na výpočetní stroje v clusteru. Na hlavě se nemají pouštět žádné náročné výpočty a naopak na ostatní stroje v clusteru se mají výpočty odesílat výhradně prostřednictvím hlavy. Hlava má 2 procesory Intel Pentium D 3 GHz a 1 GB paměti. Ve skutečnosti existují hlavy dvě - lrc1 a lrc2, které sdílí IP adresu lrc.ufal.hide.ms.mff.cuni.cz. V případě výpadku jedné z hlav, přebírá kontrolu ta druhá.
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