PERFORMANCE TESTING OF PVM AND MPI WITH THE MOSIX PROCESS MIGRATION IN A DISTRIBUTED COMPUTING ENVIRONMENT Mr. Ye Myint Naing STATE MARINE TECHNICAL UNIVERSITY, ST.PETERSBURG 1 JINR, LIT July,2012 Dubna

W HAT IS MOSIX? An operating system-like management system for distributed-memory architectures, such as clusters and multi-clusters, including remote clusters on Clouds Main features: Provides a single-system image. Automatic resource discovery Dynamic workload distribution by process migration 2

K ERNEL LAYER OF MOSIX 3

MOSIX D IRECT F ILE S YSTEM A CCESS Provides a unified view of all files and all mounted FSs on all nodes, as if they were within a single FS Makes all directories and regular files throughout a MOSIX cluster available from all the nodes Provides file consistency from different nodes by maintaining one cache at the server (disk) node Parallel file access by process migrate 4

P ROCESS MIGRATION 5

D YNAMIC LOAD BALANCING 6

PVM VS MOSIX 7

MPI VS MOSIX 8

C ONCLUSIONS High performance of a cluster on completely parallel tasks, MOSIX preemptive process migration mechanism and its load balancing sheme. For performance increase on strongly connected tasks it is necessary to increase speed of a network, for example using Gigabit Ethernet or Myrinet. MOSIX don't manage to be reached a gain in performance of single process 9

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