Tags:
create new tag
view all tags
<!-- keep this as a security measure:
  • Set ALLOWTOPICCHANGE = TWikiAdminGroup,Main.LCGAdminGroup
  • Set ALLOWTOPICRENAME = TWikiAdminGroup,Main.LCGAdminGroup #uncomment this if you want the page only be viewable by the internal people #* Set ALLOWTOPICVIEW = TWikiAdminGroup,Main.LCGAdminGroup
-->

lhconcray_services_201910.png

Specifications, standard Benchmark values

CPU

HS06 = HEP-SPEC06 benchmark value (see details in HEP-SPEC06 webpage) (Note: 1 HS06 = 1 GFlop, approximately)

Please note: the following figures reflect the INSTALLED capacity. Pledge capacity is 10% lower due to various inefficiencies.

CSCS Tier-2 LCGonCray CPU counts and performance benchmarks
Nodes Description Processors Cores/node Total cores HS06/core Total HS06 RAM/core
172 Xeon E5-2695 v4 @ 2.10GHz   68 11696 12.45 145615 2 GB
  Total     11696   145615  
Intel® Xeon E5-2695 v4 @ 2.10GHz

These CPU resources are divided among the VOs with fairshare (data taken from the last week of usage) and a few reserved slots (for exclusive usage):

  • ATLAS: 40% fairshare (max of 2000 jobs running, 4000 in queue).
  • CMS: 40% fairshare (max of 2000 jobs running, 4000 in queue).
  • LHCb: 20% fairshare (max of 1500 jobs running, 4000 in queue).

Last update: August 2018

Storage infrastructure

Central Storage - dCache

The dCache services are provided by 12 servers (10 "Storage Elements" and 2 "Head Nodes")
Storage Elements are connected to the storage systems through the CSCS SAN

Total space available on dCache is 4.6 PB and is distributed in 40% - 40% - 20% (ATLAS/CMS/LHCb) fashion.

Last update: November 2019

Scratch - Spectrum Scale

The 'scratch' filesystem is available to Compute nodes through special DVS nodes and is provided by a Spectrum Scale cluster of 16 nodes (4 meta + 12 data).

Metedata is located on Flash Storage

The filesystem is featuring a policy based pool tiering
Tier1: SSD based data pool (90TB) where all files are written
Tier2: HDD based data pool (380TB) where less frequently used data is moved (this mechanism is transparent for the clients)

Last update: November 2019

Network connectivity

External network

CSCS has a redundant 100Gbit/s connection (provided by SWITCH). LHConCray computing resources, storage and all related services are connected to the Internet with many high speed interfaces.

Cluster Management Nodes

Most of the service nodes are virtualized. To see a complete list please visit the FabricInventory#Virtual_Machines

Individual services are described in ServiceInformation

Topic attachments
I Attachment History Action Size Date WhoSorted ascending Comment
PNGpng phoenix_services.png r1 manage 258.6 K 2017-12-19 - 08:37 DinoConciatore Phoenix_LCG_Services_Nov_2017
PNGpng phoenix_services_future.png r1 manage 284.2 K 2018-02-05 - 15:35 DinoConciatore Phoenix_LCG_Services_FEB_2018
PNGpng phoenix_services_notit.png r1 manage 204.9 K 2016-09-21 - 12:33 DinoConciatore Phoenix Services 2016
PNGpng lhconcray_services_201910.png r1 manage 354.9 K 2019-11-11 - 15:11 GianniRicciardi  
PNGpng Phoenix_LCG_Services_Nov_2013.png r1 manage 302.7 K 2013-11-17 - 23:08 MiguelGila  
JPEGjpg Phoenix_LCG_Services_Phase_D.jpg r2 r1 manage 90.9 K 2011-05-25 - 07:45 PabloFernandez  
JPEGjpg Phoenix_LCG_Services_Phase_E.jpg r1 manage 79.8 K 2011-12-09 - 12:58 PabloFernandez  
JPEGjpg Phoenix_LCG_Services_Phase_E_-_after_move.jpg r1 manage 85.1 K 2012-05-29 - 09:04 PabloFernandez  
JPEGjpg Phoenix_LCG_Services_Phase_F.jpg r1 manage 85.2 K 2012-08-21 - 08:13 PabloFernandez  
JPEGjpg Phoenix_LCG_Services_Phase_G.jpg r1 manage 87.8 K 2013-02-21 - 10:37 PabloFernandez  
Unknown file formatpptx Phoenix_Training_session.pptx r1 manage 45.7 K 2011-05-30 - 13:35 PabloFernandez  
Edit | Attach | Watch | Print version | History: r57 < r56 < r55 < r54 < r53 | Backlinks | Raw View | Raw edit | More topic actions
Topic revision: r57 - 2019-11-11 - GianniRicciardi
 
This site is powered by the TWiki collaboration platform Powered by Perl This site is powered by the TWiki collaboration platformCopyright © 2008-2020 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback