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Akademický článek

Optimizing Iterative Data-Flow Scientific Applications Using Directed Cyclic Graphs

Publikováno v: IEEE Access, Vol 11, Pp 51971-51984 (2023)

Data-flow programming models have become a popular choice for writing parallel applications as an alternative to traditional work-sharing parallelism. They are better suited to write applications with irregular parallelism that can present load imbal

Externí odkaz: https://doaj.org/article/2733358dd8db41d1ad33688700f61b55

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Mitigating the NUMA effect on task-based runtime systems

Autor: Maroñas Bravo, Marcos, Navarro Muñoz, Antoni, Ayguadé Parra, Eduard, Beltran Querol, Vicenç

Publikováno v: The Journal of Supercomputing.

Processors with multiple sockets or chiplets are becoming more conventional. These kinds of processors usually expose a single shared address space. However, due to hardware restrictions, they adopt a NUMA approach, where each processor accesses loca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abd86186972399f62bedce017ddf0f2e
https://doi.org/10.1007/s11227-023-05164-9

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Methodology for malleable applications on distributed memory systems

Autor: Aguilar Mena, Jimmy

Publikováno v: TDX (Tesis Doctorals en Xarxa)

A la portada logo BSC (English) The dominant programming approach for scientific and industrial computing on clusters is MPI+X. While there are a variety of approaches within the node, denoted by the ``X'', Message Passing interface (MPI) is the stan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3484::22f5d95d31920d2258be6b1aff990697
https://hdl.handle.net/2117/38081410803/687393

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Automatic aggregation of subtask accesses for nested OpenMP-style tasks

Autor: Ali, Omar Shaaban Ibrahim, Aguilar Mena, Jimmy, Beltran Querol, Vicenç, Carpenter, Paul Matthew, Ayguadé Parra, Eduard, Labarta Mancho, Jesús José

Publikováno v: 2022 IEEE 34th International Symposium on Computer Architecture and High Performance Computing (SBAC-PAD).

Task-based programming is a high performance and productive model to express parallelism. Tasks encapsulate work to be executed across multiple cores or offloaded to GPUs, FPGAs, other accelerators or other nodes. In order to maintain parallelism and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd232db6bcdc58f97165b4ca87314b1c
https://doi.org/10.1109/sbac-pad55451.2022.00042

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TACL: Interoperating asynchronous device APIs with task-based programming models

Autor: Alvarez, David, Sala Penadés, Kevin, Beltran, Vicenç

Heterogeneous architectures have become commonplace in modern HPC systems. Eight of the world’s top ten supercomputers have accelerators, and the up-and-coming MareNostrum 5 will feature accelerated partitions. However, programming these heterogene

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3484::16867ef26a92f63a63d2d7218bfa7f60
https://hdl.handle.net/2117/381039

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Akademický článek

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Combining dynamic concurrency throttling with voltage and frequency scaling on task-based programming models

Autor: Eduard Ayguadé Parra, Vicenç Beltran Querol, Antoni Navarro Muñoz, Arthur F. Lorenzon

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
50th International Conference on Parallel Processing
ICPP

Being on the verge of exascale performance has shifted the prioritization of performance in applications to the inclusion of power-performance efficiency as a primary objective in the High Performance Computing (HPC) community. Simultaneously, this h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3aa5b0b58ec34286c971482eb47c667a

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MPS: multi-process support for Nanos6

Autor: Álvarez Robert, David

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::f0306eecf9c301a976eb415bf939efaf
http://hdl.handle.net/2117/356914

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Towards supporting composability of directive-based programming models for heterogeneous computing

Autor: Korakitis, Orestis

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Current trends in High Performance Computing suggest a significant shift towards heterogeneous architectures, utilising GPUs and other accelerators for their combination of computation capacity and power efficiency. Therefore, programming heterogeneo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::601a84da73dee3bfe87864ff8afd11d2
https://hdl.handle.net/2117/335903

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Improving comunication in task-based runtimes for heterogeneous systems

Autor: Cano Díaz, Rubén

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

HPC machines in the race for exascale computing are more heterogeneous than ever. The complexity of the systems makes the programming and interoperability of the multiple accelerators a huge task that most of the times the programmer must handle dire

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::c50fc9c2645d6e5d690b988f62b14b7f
https://hdl.handle.net/2117/334936

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