In this paper, we implement a SPAM (Smooth Particle Applied Mechanics) code in both pure MPI and MPI-OpenMP hybrid manner, then compare and analize the performance of them on an SMPPC cluster. Our SPAM code is described to handle any mapping of spatial cells on to parallel MPI processes to exploit well load-balancing even with a relatively high communication cost. First we implement a paralleli...

Magnetic Particle Imaging (MPI) is a new tracer imaging modality that is gaining significant interest from NMR and MRI researchers. While the physics of MPI differ substantially from MRI, it employs hardware and imaging concepts that are familiar to MRI researchers, such as magnetic excitation and detection, pulse sequences, and relaxation effects. Furthermore, MPI employs the same superparamag...

The indicators measuring socioeconomic wellbeing, such as the human development index (HDI) and multi-dimensional poverty indicator (MPI), recognize energy an important resource for development. However, did not find due weight in determining HDI or MPI, except a fractional contributor to MPI calculations. This study presents regression model establish energy–poverty nexus Pakistan, utilizing r...

The Message Passing Interface (MPI) is a language-independent application interface that provides a standard for communication among the processes of programs running on parallel computers, clusters or heterogeneous networks. However, writing correct and portable MPI applications is di cult: inconsistent or incorrect use of parameters may occur; the subtle semantic di erences of various MPI cal...

Supercomputing plays an important role in several innovative fields, speeding up prototyping or validating scientific theories. However, supercomputers are evolving rapidly with now millions of processing units, posing the questions of their programmability. Despite the emergence of more widespread and functional parallel programming models, developing correct and effective parallel application...

BACKGROUND Myocardial perfusion imaging (MPI) can detect myocardial perfusion abnormalities but many examinations are without pathological findings. This study examines whether circulating biomarkers can be used as screening modality prior to MPI. METHODOLOGY/PRINCIPAL FINDINGS 243 patients with an intermediate risk of CAD or with known CAD with renewed suspicion of ischemia were referred to ...

Usage errors of the widely accepted Message-Passing Interface (MPI) are common and complicate the development process of parallel applications considerably. Some of these errors are hard to track, especially when they only occur in certain application runs or on certain platforms. Runtime correctness checking tools for MPI simplify the detection of these errors. However, they usually need the M...

The Malmquist Productivity Index (MPI) suggests a convenient way of measuring the productivity change of a given unit between two consequent time periods. Until now, only a static approach for analyzing the MPI was available in the literature. However, this hides a potentially valuable information given by the evolution of productivity over time. In this paper, we introduce a dynamic procedure ...

This document from the American Society of Nuclear Cardiology represents an updated consensus statement on the evidence base of stress myocardial perfusion imaging (MPI), emphasizing new developments in single-photon emission tomography (SPECT) and positron emission tomography (PET) in the clinical evaluation of women presenting with symptoms of stable ischemic heart disease (SIHD). The clinica...

Communication latencies have been identified as one of the performance limiting factors of message passing applications in clusters of workstations/multiprocessors. On the receiver side, message-copying operations contribute to these communication latencies. Recently, prediction of MPI messages has been proposed as part of the design of a zero message-copying mechanism. Until now, prediction wa...