Secure VPN technology is only possible with the use of appropriate security systems such
as encryption, digital signatures, digital certificates, public/private key pairs, non-repudiation …

Driven by growing application requirements and accelerated by current trends in
microprocessor design, the number of processor cores on modern supercomputers is …

Communications are a critical part of HPC simulations, and one of the main focuses of
application developers when scaling on supercomputers. While classical message passing …

One-sided communication decouples data movement and synchronization by providing
support for asynchronous reads and updates of distributed shared data. While such …

MPI one-sided communication decouples data movement from synchronization, which
eliminates overhead from unneeded synchronization and allows for greater concurrency. On …

Bottlenecks and imbalance in parallel programs can significantly affect performance of
parallel execution. Finding these bottlenecks is a key issue in performance analysis of MPI …

Abstract The Message Passing Interface (MPI) specifies a one-sided interface for Remote
Memory Access (RMA), which allows one process to specify all communication parameters …

Programming of high performance computing systems has become more complex over time.
Several layers of parallelism need to be exploited to efficiently utilize the available …

Parallel programming models for distributed memory systems rely on communication
operations. Their behavior is essential for the performance of parallel application codes …

Abstract The Message Passing Interface (MPI-3) provides a one-sided communication
interface, also known as MPI Remote Memory Access (RMA), which enables one process to …