Dear Maui users, I have a general question on how to manage hierarchical topologies of high-speed interconnects (e.g. InfiniBand) by Maui.
Consider some groups of nodes each of them connected to a network switch: Nodes A_1,...,A_n may be connected to switch 'A', nodes B_1,...,B_n to switch 'B', nodes C_1,...,C_n to switch 'C' and nodes D_1,...,D_n to switch 'D'. Switches 'A' and 'B' have some uplinks to a level-2 switch 'L' and switches 'C' and 'D' are connected to a level-2 switch 'K'. Switches 'L' and 'K' could also have links to a top-level switch 'T'. This is a very common setup for medium-sized compute clusters at universities all around the world. However, gigantic fabric-switches providing a full fat tree network are usually not within a university's budget. A parallel batch job should be placed on a set of nodes minimizing the pruning factor: as far as possible only nodes connected to the same low-level switch should be chosen. Only if there is no other possibility the job should be placed on nodes with interconnect path via one of the level-2 switches. Above all the top-level switch should only be part of the network path if the requested number of cores cannot be allocated otherwise. Does the functionality of Maui allow such a sophisticated, hierarchical network topology aware placement of jobs? Thank you in advance for an answer. Best regards. Stephan -- --------------------------------------------------------- | | Dr. rer. nat. Stephan Raub | | Dipl. Chem. | | Center for Information- and Mediatechnology | | Heinrich-Heine-Universität Düsseldorf Universitätsstr. 1 / | | 25.41.O2.25-2 | | 40225 Düsseldorf / Germany | | | | Tel: +49-211-811-3911 --------------------------------------------------------- Wichtiger Hinweis: Diese E-Mail kann Betriebs- oder Geschäftsgeheimnisse, bzw. sonstige vertrauliche Informationen enthalten. Sollten Sie diese E-Mail irrtümlich erhalten haben, ist Ihnen eine Kenntnisnahme des Inhalts, eine Vervielfältigung oder Weitergabe der E-Mail ausdrücklich untersagt. Bitte benachrichtigen Sie uns und vernichten Sie die empfangene E-Mail. Vielen Dank. Important Note: This e-mail may contain trade secrets or privileged, undisclosed or otherwise confidential information. If you have received this e-mail in error, you are hereby notified that any review, copying or distribution of it is strictly prohibited. Please inform us immediately and destroy the original transmittal. Thank you for your cooperation. _______________________________________________ mauiusers mailing list [email protected] http://www.supercluster.org/mailman/listinfo/mauiusers
