Now showing items 1-9 of 9

  • A runtime heuristic to selectively replicate tasks for application-specific reliability targets 

    Subasi, Omer; Yalcin, Gulay; Zyulkyarov, Ferad; Unsal, Osman Sabri; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Open Access
    In this paper we propose a runtime-based selective task replication technique for task-parallel high performance computing applications. Our selective task replication technique is automatic and does not require ...
  • Atomic quake: using transactional memory in an interactive mulitplayer game Server 

    Zyulkyarov, Ferad; Gajinov, Vladimir; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Ayguadé Parra, Eduard; Harris, Tim; Valero Cortés, Mateo (2009)
    Conference report
    Open Access
    Transactional Memory (TM) is being studied widely as a new technique for synchronizing concurrent accesses to shared memory data structures for use in multi-core systems. Much of the initial work on TM has been evaluated ...
  • Designing and modelling selective replication for fault-tolerant HPC applications 

    Subasi, Omer; Yalcin, Gulay; Zyulkyarov, Ferad; Unsal, Osman Sabri; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference report
    Open Access
    Fail-stop errors and Silent Data Corruptions (SDCs) are the most common failure modes for High Performance Computing (HPC) applications. There are studies that address fail-stop errors and studies that address SDCs. However ...
  • Diluting the Scalability Boundaries: Exploring the Use of Disaggregated Architectures for High-Level Network Data Analysis 

    Vega, Carlos; Zazo, Jose F.; Meyer, Hugo; Zyulkyarov, Ferad; Lopez-Buedo, S.; Aracil, Javier (IEEE, 2018-02-15)
    Conference lecture
    Open Access
    Traditional data centers are designed with a rigid architecture of fit-for-purpose servers that provision resources beyond the average workload in order to deal with occasional peaks of data. Heterogeneous data centers are ...
  • Disaggregated Computing. An Evaluation of Current Trends for Datacentres 

    Meyer, Hugo; Sancho, Jose C.; Quiroga, Josue V.; Zyulkyarov, Ferad; Roca, Damian; Nemirovsky, Mario (Elsevier, 2017)
    Article
    Open Access
    Next generation data centers will likely be based on the emerging paradigm of disaggregated function-blocks-as-a-unit departing from the current state of mainboard-as-a-unit. Multiple functional blocks or bricks such as ...
  • dReDBox: A Disaggregated Architectural Perspective for Data Centers 

    Alachiotis, Nikolaos; Andronikakis, Andreas; Papadakis, Orion; Theodoropoulos, Dimitris; Pnevmatikatos, Dionisios; Syrivelis, Dimitris; Reale, Andrea; Katrinis, Kostas; Zervas, George; Mishra, Vaibhawa; Yuan, Hui; Syrigos, Ilias; Igoumenos, Ioannis; Korakis, Thanasis; Torrents, Marti; Zyulkyarov, Ferad (Springer, 2018-08-22)
    Part of book or chapter of book
    Open Access
    Data centers are currently constructed with fixed blocks (blades); the hard boundaries of this approach lead to suboptimal utilization of resources and increased energy requirements. The dReDBox (disaggregated Recursive ...
  • QuakeTM: Parallelizing a complex serial application using transactional memory 

    Gajinov, Vladimir; Zyulkyarov, Ferad; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Ayguadé Parra, Eduard; Harris, Tim; Valero Cortés, Mateo (2008-11)
    External research report
    Open Access
    'Is transactional memory useful?' is the question that cannot be answered until we provide substantial applications that can evaluate its capabilities. While existing TM applications can partially answer the above question, ...
  • Unified fault-tolerance framework for hybrid task-parallel message-passing applications 

    Subasi, Omer; Martsinkevich, Tatiana; Zyulkyarov, Ferad; Unsal, Osman; Labarta Mancho, Jesús José; Cappello, Franck (SAGE Publications, 2016-09-26)
    Article
    Open Access
    We present a unified fault-tolerance framework for task-parallel message-passing applications to mitigate transient errors. First, we propose a fault-tolerant message-logging protocol that only requires the restart of the ...
  • Unprotected computing: a large-scale study of DRAM raw error rate on a supercomputer 

    Bautista-Gomez, Leonardo; Zyulkyarov, Ferad; Unsal, Osman; McIntosh-Smith, Simon (ACM, 2016-11-13)
    Conference lecture
    Open Access
    Supercomputers offer new opportunities for scientific computing as they grow in size. However, their growth also poses new challenges. Resilience has been recognized as one of the most pressing issues to solve for extreme ...