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    • A case for code-representative microbenchmarks 

      Bulla, Calvin; Moretó Planas, Miquel (Barcelona Supercomputing Center, 2017-05-04)
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      Microbenchmarks are fundamental in the design of a microarchitecture. They allow rapid evaluation of the system, while incurring little exploration overhead. One key design aspect is the thermal design point (TDP), the ...

    • A FM-index transformation to enable large k-steps 

      Langarita, Rubén; Armejach Sanosa, Adrià; Moretó Planas, Miquel (Barcelona Supercomputing Center, 2019-05-07)
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    • A hardware evaluation of cache partitioning to improve utilization and energy-efficiency while preserving responsiveness 

      Cook, Henry; Moretó Planas, Miquel; Bird, Sarah L.; Dao, Khanh; Patterson, David; Asanovic, Krste (ACM, 2013)
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      Computing workloads often contain a mix of interactive, latency-sensitive foreground applications and recurring background computations. To guarantee responsiveness, interactive and batch applications are often run on ...

    • A hardware/software co-design of K-mer counting using a CAPI-enabled FPGA 

      Haghi, Abbas; Álvarez Martí, Lluc; Polo Bardés, Jorda; Diamantopoulos, Dionysios; Hagleitner, Christoph; Moretó Planas, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2020)
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      Advances in Next Generation Sequencing (NGS) technologies have caused the proliferation of genomic applications to detect DNA mutations and guide personalized medicine. These applications have an enormous computational ...

    • A safety-critical, RISC-V SoC integrated and ASIC-ready classic McEliece accelerator 

      Kostalabros, Vatistas; Ribes González, Jordi; Farràs Ventura, Oriol; Moretó Planas, Miquel; Hernández Luz, Carles (Springer, 2024)
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      Security is an integral part of ensuring the integrity of safety-critical systems. Safety-critical systems with extremely long-lifespan, such as the ones employed in the space and automotive industry, need additional ...

    • A security model for randomization-based protected caches 

      Ribes González, Jordi; Farràs Ventura, Oriol; Hernández Luz, Carles; Kostalabros, Vatistas; Moretó Planas, Miquel (2022)
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      Cache side-channel attacks allow adversaries to learn sensitive information about co-running processes by using only access latency measures and cache contention. This vulnerability has been shown to lead to several ...

    • A Tensor Marshaling Unit for sparse tensor algebra on general-purpose processors 

      Siracusa, Marco; Soria Pardos, Víctor; Sgherzi, Francesco; Randall, Joshua; Joseph, Douglas J.; Moretó Planas, Miquel; Armejach Sanosa, Adrià (Association for Computing Machinery (ACM), 2023)
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      This paper proposes the Tensor Marshaling Unit (TMU), a near-core programmable dataflow engine for multicore architectures that accelerates tensor traversals and merging, the most critical op-erations of sparse tensor ...

    • A vulnerability factor for ECC-protected memory 

      Jaulmes, Luc; Moretó Planas, Miquel; Valero Cortés, Mateo; Casas, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2019)
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      Fault injection studies and vulnerability analyses have been used to estimate the reliability of data structures in memory. We survey these metrics and look at their adequacy to describe the data stored in ECC-protected ...

    • Accelerating edit-distance sequence alignment on GPU using the wavefront algorithm 

      Aguado Puig, Quim; Marco-Sola, Santiago; Moure López, Juan Carlos; Castells Rufas, David; Álvarez Martí, Lluc; Espinosa Morales, Antonio; Moretó Planas, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2022-06-10)
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      Sequence alignment remains a fundamental problem with practical applications ranging from pattern recognition to computational biology. Traditional algorithms based on dynamic programming are hard to parallelize, require ...

    • Accurate and efficient constrained molecular dynamics of polymers using Newton's method and special purpose code 

      López Villellas, Lorién; Kjelgaard Mikkelsen, Carl Christian; Galano Frutos, Juan José; Marco Sola, Santiago; Alastruey Benedé, Jesús; Ibáñez Marín, Pablo Enrique; Moretó Planas, Miquel; Sancho Sanz, Javier; García Risueño, Pablo (2023-07)
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      In molecular dynamics simulations we can often increase the time step by imposing constraints on bond lengths and bond angles. This allows us to extend the length of the time interval and therefore the range of physical ...

    • Adapting cache partitioning algorithms to pseudo-LRU replacement policies 

      Kedzierski, Kamil; Moretó Planas, Miquel; Cazorla, Francisco; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2010)
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      Recent studies have shown that cache partitioning is an efficient technique to improve throughput, fairness and Quality of Service (QoS) in CMP processors. The cache partitioning algorithms proposed so far assume Least ...

    • Adaptive and application dependent runtime guided hardware prefetcher reconfiguration on the IBM Power7 

      Prat Robles, David; Ortega Carrasco, Cristobal; Casas, Marc; Moretó Planas, Miquel; Valero Cortés, Mateo (2015)
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    • Adaptive power shifting for power-constrained heterogeneous systems 

      Ortega Carrasco, Cristobal; Alvarez Martí, Lluc; Buyuktosunoglu, Alper; Bertran Monfort, Ramon; Rosedahl, Todd Jon; Bose, Pradip; Moretó Planas, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2023-03-01)
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      The number and heterogeneity of compute devices, even within a single compute node, has been steadily on the rise. Since all systems must operate under a power cap, the number of discrete devices that can run simultaneously ...

    • An academic RISC-V silicon implementation based on open-source components 

      Abella Ferrer, Jaume; Bulla, Calvin; Cabo Pitarch, Guillem; Cazorla Almeida, Francisco Javier; Cristal Kestelman, Adrián; Doblas Font, Max; Figueras Bagué, Roger; González Trejo, Alberto; Hernández Luz, Carles; Hernández Calderón, César Alejandro; Jiménez Arador, Víctor; Kosmidis, Leonidas; Kostalampros, Ioannis-Vatistas; Langarita Benítez, Rubén; Leyva Santes, Neiel; López Paradís, Guillem; Marimon Illana, Joan; Martínez Martínez, Ricardo; Mendoza Escobar, Jonnatan; Moll Echeto, Francisco de Borja; Moretó Planas, Miquel; Pavón Rivera, Julián; Ramírez Lazo, Cristóbal; Ramírez Salinas, Marco Antonio; Rojas Morales, Carlos; Rubio Sola, Jose Antonio; Ruiz, Abraham Josafat; Sonmez, Nehir; Soria Pardos, Víctor; Teres Teres, Lluis; Unsal, Osman Sabri; Valero Cortés, Mateo; Vargas Valdivieso, Iván; Villa Vargas, Luis Alfonso (Institute of Electrical and Electronics Engineers (IEEE), 2020)
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      The design presented in this paper, called preDRAC, is a RISC-V general purpose processor capable of booting Linux jointly developed by BSC, CIC-IPN, IMB-CNM (CSIC), and UPC. The preDRAC processor is the first RISC-V ...

    • An FPGA accelerator of the wavefront algorithm for genomics pairwise alignment 

      Haghi, Abbas; Marco-Sola, Santiago; Álvarez Martí, Lluc; Diamantopoulos, Dionysios; Hagleitner, Christoph; Moretó Planas, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2021)
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      In the last years, advances in next-generation sequencing technologies have enabled the proliferation of genomic applications that guide personalized medicine. These applications have an enormous computational cost due to ...

    • An optimized predication execution for SIMD extensions 

      Barredo Ferreira, Adrián; Cebrián González, Juan Manuel; Moretó Planas, Miquel; Casas, Marc; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2019)
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      Vector processing is a widely used technique to improve performance and energy efficiency in modern processors. Most of them rely on predication to support divergence control. However, performance and energy consumption ...

    • AnchorWave: Sensitive alignment of genomes with high sequence diversity, extensive structural polymorphism, and whole-genome duplication 

      Song, Baoxing; Marco-Sola, Santiago; Moretó Planas, Miquel; Johnson, Lynn; Buckler, Edward S.; Stitzer, Michelle C. (2022-01-04)
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      Millions of species are currently being sequenced, and their genomes are being compared. Many of them have more complex genomes than model systems and raise novel challenges for genome alignment. Widely used local alignment ...

    • Architectural support for task dependence management with flexible software scheduling 

      Castillo, Emilio; Álvarez Martí, Lluc; Moretó Planas, Miquel; Casas, Marc; Vallejo, Enrique; Bosque, Jose L.; Beivide Palacio, Ramon; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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      The growing complexity of multi-core architectures has motivated a wide range of software mechanisms to improve the orchestration of parallel executions. Task parallelism has become a very attractive approach thanks to its ...

    • Asynchronous and exact forward recovery for detected errors in iterative solvers 

      Jaulmes, Luc; Casas, Marc; Moretó Planas, Miquel; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José; Valero Cortés, Mateo (2018-03-19)
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      Current trends and projections show that faults in computer systems become increasingly common. Such errors may be detected, and possibly corrected transparently, e.g. by Error Correcting Codes (ECC). For a program to be ...

    • ATM: approximate task memoization in the runtime system 

      Brumar, Iulian; Casas, Marc; Moretó Planas, Miquel; Valero Cortés, Mateo; Sohi, Gurindar S. (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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      Redundant computations appear during the execution of real programs. Multiple factors contribute to these unnecessary computations, such as repetitive inputs and patterns, calling functions with the same parameters or bad ...