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| HAL : hal-00368622, version 1 |
| Fiche détaillée |  Récupérer au format |
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| Efficient shared memory message passing for inter-VM communications |
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| François Diakhaté 1, 2Marc Pérache 1 |
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| (08/2008) |
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| Thanks to recent advances in virtualization technologies, it is now possible to benefit from the flexibility brought by virtual machines at little cost in terms of CPU performance. However on HPC clusters some overheads remain which prevent widespread usage of virtualization. In this article, we tackle the issue of inter-VM MPI communications when VMs are located on the same physical machine. To achieve this we introduce a virtual device which provides a simple message passing API to the guest OS. This interface can then be used to implement an efficient MPI library for virtual machines. The use of a virtual device makes our solution easily portable across multiple guest operating systems since it only requires a small driver to be written for this device. We present an implementation based on Linux, the KVM hypervisor and Qemu as its userspace device emulator. Our implementation achieves near native performance in terms of MPI latency and bandwidth. |
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| 1 : | CEA DIF (CEA DIF) |
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CEA : DIF |
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| 2 : | Laboratoire Bordelais de Recherche en Informatique (LaBRI) |
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CNRS : UMR5800 – Université Sciences et Technologies - Bordeaux I – Ecole Nationale Supérieure d'Electronique, Informatique et Radiocommunications de Bordeaux – Université Victor Segalen - Bordeaux II |
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| 3 : | RUNTIME (INRIA Bordeaux - Sud-Ouest) |
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INRIA – CNRS : UMR5800 – Université Sciences et Technologies - Bordeaux I – Ecole Nationale Supérieure d'Electronique, Informatique et Radiocommunications de Bordeaux |
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| 4 : | RUNTIME (INRIA Futurs) |
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INRIA – CNRS : UMR5800 – Université Sciences et Technologies - Bordeaux I – Ecole Nationale Supérieure d'Electronique, Informatique et Radiocommunications de Bordeaux |
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| Domaine | : | Informatique/Calcul parallèle, distribué et partagé |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00368622, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00368622 | |
| oai:hal.archives-ouvertes.fr:hal-00368622 | |
| Contributeur : François Diakhaté | |
| Soumis le : Mardi 17 Mars 2009, 11:10:58 | |
| Dernière modification le : Mardi 17 Mars 2009, 11:23:28 | |
