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services:computing:hpc [2021/06/09 10:45] calucci [Simplest possible job] |
services:computing:hpc [2021/09/06 12:13] calucci [Hardware and Software] |
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- | Ulysses v2 can be accessed via the login nodes at ''frontend1.hpc.sissa.it'' or ''frontend2.hpc.sissa.it'' from SISSA network or from SISSA [[:vpn|VPN]]. More access options might be made available in due time. | + | SSH access to Ulysses v2 is provided via the login nodes at ''frontend1.hpc.sissa.it'' or ''frontend2.hpc.sissa.it'' from SISSA network or from SISSA [[:vpn|VPN]]. More access options might be made available in due time. |
===== Hardware and Software ===== | ===== Hardware and Software ===== | ||
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The software tree is the same you have on Linux workstations, with the same [[services:modules|Lmod modules]] system (with the only exception of desktop-oriented software packages). | The software tree is the same you have on Linux workstations, with the same [[services:modules|Lmod modules]] system (with the only exception of desktop-oriented software packages). | ||
+ | |||
+ | A small number of POWER9-based nodes are also available (2 sockets, 16 cores, 4 threads per core; 256GB RAM) with 2 or 4 Tesla V100. Please note that you cannot run x86 code on POWER9. For an interactive shell on a P9 machine, please type ''p9login'' on frontend[12]. | ||
===== Queue System ===== | ===== Queue System ===== | ||
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* **''long1''** and **''long2''**: max 8 nodes, max 48h | * **''long1''** and **''long2''**: max 8 nodes, max 48h | ||
* **''gpu1''** and **''gpu2''**: max 4 nodes, max 12h | * **''gpu1''** and **''gpu2''**: max 4 nodes, max 12h | ||
+ | * **''power9''**: max 2 nodes, max 24h | ||
<note tip>Please note that hyperthreading is enabled on all nodes (it was disabled on old Ulysses). If you **do not** want to use hyperthreading, the ''%%--hint=nomultithread%%'' options to srun/sbatch will help. | <note tip>Please note that hyperthreading is enabled on all nodes (it was disabled on old Ulysses). If you **do not** want to use hyperthreading, the ''%%--hint=nomultithread%%'' options to srun/sbatch will help. |