Partitions overview

Important

This documentation represent final expected state, not current migration state

Only small amount of E5 and Lake partitions are migrated, with login-nodes different from this documentation. Follow our news feed for up-to-date informations.

PSMN partitions 2022

Fig. 31 A view of PSMN partitions

Without partition

login nodes

CPU Model

cores

RAM

ratio

infiniband

GPU

local scratch

x5570comp[1-2]

X5570 @ 2.93GHz

8

24 GiB

3 GiB/core

N/A

N/A

N/A

These login nodes are the oldest. There is no specific environment modules. Usable for anything BUT builds (jobs surveillance, files operations [edition, compression/decompression, copy/move, etc.], short testings, etc.).

Binaries build on these, with system defaults (no loaded modules), should run on all partitions. Minimal GCC tuning: -mtune=generic -O2 -msse4a.

Tip

You can submit jobs from any login node to any partition. Login nodes are only segregated for build (CPU µarch) and scratch access. See Login nodes.

Partitions E5

Todo

login node c8220node1, 7 usable nodes (mainly for testing purpose)

Hint

Best use case: sequential jobs, small parallel jobs, GPU jobs

login nodes

CPU Model

cores

RAM

ratio

infiniband

GPU

local scratch

c8220node1

E5-2670 0 @ 2.6GHz

16

256 Gib

16 GiB/core

56 GiB/s

/scratch/ssd

E5-2650v2 @ 2.6GHz

16

256 Gib

16 GiB/core

56 GiB/s

/scratch/ssd

E5-2667v2 @ 3.3GHz

16

128 Gib

8 GiB/core

56 GiB/s

E5-2667v2 @ 3.3GHz

16

256 Gib

16 GiB/core

56 GiB/s

e5-2667v4comp[1-2]

E5-2667v4 @ 3.2GHz

16

128 Gib

8 GiB/core

56 GiB/s

E5-2667v4 @ 3.2GHz

16

256 Gib

16 GiB/core

56 GiB/s

E5-2697Av4 @ 2.6GHz

16

256 Gib

16 GiB/core

56 GiB/s

none

E5-2637v3 @ 3.5GHz

8

128 GiB

16 GiB/core

56 GiB/s

RTX2080Ti

E5 scratch (general purpose scratch) is available, from all nodes of the partition, on the following path:

/scratch/
└── E5

Important

sub-partition E5-GPU uses /scratch/Lake

Choose ‘E5’ environment modules.

Partitions Lake

Todo

login node c6420node171, 3 usable nodes (mainly for testing purpose)

Hint

Best use case: medium parallel jobs, sequential jobs

login nodes

CPU Model

cores

RAM

ratio

infiniband

GPU

local scratch

m6142comp[1-2]

Gold 6142 @ 2.6GHz

32

384 GiB

12 GiB/core

56 GiB/s

Gold 6142 @ 2.6GHz

32

384 GiB

12 GiB/core

56 GiB/s

/scratch/disk/

cl6242comp[1-2]

Gold 6242 @ 2.8GHz

32

384 GiB

12 GiB/core

56 GiB/s

cl5218comp[1-2]

Gold 5218 @ 2.3GHz

32

192 GiB

6 GiB/core

56 GiB/s

cl6226comp[1-2]

Gold 6226R @ 2.9GHz

32

192 GiB

6 GiB/core

56 GiB/s

Gold 6226R @ 2.9GHz

32

1,5 TiB

46 GiB/core

56 GiB/s

/scratch/disk/

Silver 4215R @ 3.2GHz

16

192 GiB

12 GiB/core

56 GiB/s

Lake scratchs are available, from all nodes of the partition, on the following paths:

/scratch/
├── Bio
├── Chimie
├── Lake    (general purpose scratch)
└── Themiss

‘’Bio’’, ‘’Chimie’’ scratchs are meant for users of respective labs and teams.

‘’Themiss’’ scratch is reserved to Themiss ERC users.

‘’Lake’’ is for all users (general purpose scratch).

Choose ‘Lake’ environment modules.

Partition Epyc

Hint

Best use case: large parallel jobs

login nodes

CPU Model

cores

RAM

ratio

infiniband

GPU

local scratch

none

EPYC 7702 @ 2.0GHz

128

512 GiB

4 GiB/core

100 GiB/s

N/A

None

There is no login node available in the Epyc partition at the moment.

Epyc partition is using Lake scratchs. There is no specific environment modules.

Partition Cascade

Hint

Best use case: large parallel jobs

login nodes

CPU Model

cores

RAM

ratio

infiniband

GPU

local scratch

s92node01

Platinum 9242 @ 2.3GHz

96

384 GiB

4 GiB/core

100 GiB/s

N/A

None

Cascade scratch (general purpose scratch) is available, from all nodes of the partition, on the following path:

/scratch/
├── Cascade     (general purpose scratch)
└── Cral

‘’Cral’’ scratch is meant for CRAL users and teams.

Choose ‘Cascade’ environment modules.