Performance and power constraints come together with Complementary Metal Oxide
Semiconductor technology scaling in future Exascale systems. Technology scaling makes …

Maintaining a high rate of productivity, in terms of completed jobs per unit of time, in High-
Performance Computing (HPC) facilities is a cornerstone in the next generation of exascale …

Abstract A Message-Passing Interface (MPI) program usually consists of several processes,
and a target path of this program is composed of a target sub-path selected in each process …

Combinatorial optimization problems arise in many disciplines, both in the basic sciences
and in applied fields such as engineering and economics. One of the most popular …

Progress in numerical weather and climate prediction accuracy greatly depends on the
growth of the available computing power. As the number of cores in top computing facilities …

Cloud providers can rent their spare computing capacity at substantial discounts, reclaiming
it whenever there is a more profitable higher-priority request-a business model well known …

Now that the exascale Frontier is here, it is instructive to compare its properties to those
projected in the 2008 Exascale technology report, and ask what's different, why did it …

The Open MPI for Exascale (OMPI-X) project was one of two in the Exascale Computing
Project (ECP) focused on advancing the MPI ecosystem. The OMPI-X team worked with …

Logical ring is a core component in membership protocol. However, the logic ring fails to
consider the underlying physical latency, resulting in a high diameter. To address this issue …

Due to the increasing size of HPC machines, dealing with faults is becoming mandatory due
to their high frequency. Natively, MPI cannot handle faults and it stops the execution …