Bug #13570

[Documentation] add how much extra overhead is added for RAM requirement when spinning up a compute node

Added by Bryan Cosca almost 3 years ago. Updated over 2 years ago.

Status:
Resolved
Priority:
Normal
Assigned To:
Category:
-
Target version:
Start date:
07/24/2018
Due date:
% Done:

100%

Estimated time:
(Total: 0.00 h)
Story points:
-
Release:
Release relationship:
Auto

Description

for example, if a user says ramMin 10000, what exactly does a-n-m spin a node up for?

docs might go in here: https://doc.arvados.org/user/cwl/cwl-style.html


Subtasks

Task #13589: Review 13570-crunch-ram-docResolvedTom Morris

Associated revisions

Revision cdc146d4
Added by Peter Amstutz almost 3 years ago

Merge branch '13570-crunch-ram-doc' closes #13570

Arvados-DCO-1.1-Signed-off-by: Peter Amstutz <>

History

#2 Updated by Bryan Cosca almost 3 years ago

What happens is c-d-slurm expects nodes to have 95% of the advertised memory size actually usable.

So the number that is specified in ramMin is multiplied by 100/95, which is the actual RAM requirement used to call a compute node.

#3 Updated by Tom Morris almost 3 years ago

  • Target version set to 2018-06-20 Sprint

#4 Updated by Tom Morris almost 3 years ago

  • Subject changed from [Documentation] add how much extra overhead is added when spinning up a compute node to [Documentation] add how much extra overhead is added for RAM requirement when spinning up a compute node
  • Assigned To set to Tom Morris

#5 Updated by Tom Morris almost 3 years ago

  • Target version changed from 2018-06-20 Sprint to 2018-07-03 Sprint

#6 Updated by Tom Morris almost 3 years ago

  • Target version changed from 2018-07-03 Sprint to 2018-07-18 Sprint

#7 Updated by Tom Morris almost 3 years ago

  • Target version changed from 2018-07-18 Sprint to 2018-08-01 Sprint

#8 Updated by Peter Amstutz almost 3 years ago

  • Assigned To changed from Tom Morris to Peter Amstutz

#9 Updated by Peter Amstutz almost 3 years ago

  • Status changed from New to In Progress

#11 Updated by Tom Morris almost 3 years ago

doc/api/execution

  • Always capitalize Keep (I'm unsure about "container." Is the convention to capitalize it or not?)
  • Isn't cgroups used in the cloud as well? May not be intended, but sentence ordering kind of makes it sound like cgroups is HPC only

doc/user/cwl/cwl-style

  • "Available compute nodes" => "Available instance types" or "Available compute node types"

#12 Updated by Peter Amstutz almost 3 years ago

  • Status changed from In Progress to Resolved

#13 Updated by Tom Morris over 2 years ago

  • Release set to 13

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