On the replacement of objects from round-based applications over heterogeneous environments

Authors

  • Rodrigo da Rosa Righi,

    Corresponding author
    1. Applied Computing Graduate Program (PIPCA), Universidade do Vale do Rio dos Sinos (UNISINOS), Rio Grande do Sul, Brazil
    • Correspondence to: Rodrigo da Rosa Righi, Applied Computing Graduate Program (PIPCA), UNISINOS, Unisinos Avenue, 950, Cristo Rei District, São Leopoldo, PO Box 93.022-000, Rio Grande do Sul, Brazil.

      E-mail: rrrighi@unisinos.br

    Search for more papers by this author
  • Lucas Graebin,

    1. Applied Computing Graduate Program (PIPCA), Universidade do Vale do Rio dos Sinos (UNISINOS), Rio Grande do Sul, Brazil
    Search for more papers by this author
  • Cristiano André da Costa

    1. Applied Computing Graduate Program (PIPCA), Universidade do Vale do Rio dos Sinos (UNISINOS), Rio Grande do Sul, Brazil
    Search for more papers by this author

Summary

In recent years, there has been growing support for more tightly coupled applications regarding heterogeneous resources. A specific way of obtaining better performance in such applications is to consider the replacement of execution entities by newer resources during the application's lifetime. Therefore, this article describes the rationale for developing jMigBSP, which is a Java programming library that offers object rescheduling for round-based applications. In this context, the proposal addresses Bulk Synchronous Parallel (BSP) applications because BSP represents one of the most often used models for writing tightly coupled parallel programs. jMigBSP's main contribution examines the rescheduling facility in two different ways: (i) using migration directives in the application code directly; and (ii) through automatic load balancing at the middleware level. Specifically, this second idea is feasible because of Java's inheritance feature, which transforms a simple jMigBSP application into a migratable one by changing only a single line of code. In addition to the description of jMigBSP, this article emphasizes the benefits of using migration over heterogeneous environments by executing scientific applications. The results indicate gains of up to 56% with object rescheduling and support the feasibility of using migration as a load balancing technique. Copyright © 2014 John Wiley & Sons, Ltd.

Ancillary