نتایج جستجو برای: شاخص عملکرد میوکارد mpi
تعداد نتایج: 166340 فیلتر نتایج به سال:
MPI datatypes are a convenient abstraction for manipulating complex data structures and are useful in a number of contexts. In some cases, these descriptions need to be preserved on disk or communicated between processes, such as when defining RMA windows. We propose an extension to MPI that enables marshalling and unmarshalling MPI datatypes in the spirit of MPI_Pack/MPI_Unpack. Issues in MPI ...
In this paper, we apply two different parallel programming model, the message passing model using Message Passing Interface (MPI) and the multithreaded model using Pthreads, to protein sequence homologous search. The protein sequence homologous search uses Hirschberg algorithm for the pair-wise sequence alignment. The performance of the homologous search using the MPI-Pthread is compared to the...
While MPI is the most common mechanism for expressing parallelism, MPI programs are not composable by using current MPI process managers or parallel shells. We introduce MPISH2, an MPI process manager analogous to serial Unix shells. It allows the composition of MPI and serial Unix utilities with one another to perform scalable tasks across large numbers of Unix clients. This paper discusses in...
The MPI Forum This paper presents an overview of mpi, a proposed standard message passing interface for MIMD distributed memory concurrent computers. The design of mpi has been a collective eeort involving researchers in the United States and Europe from many organizations and institutions. mpi includes point-to-point and collective communication routines, as well as support for process groups,...
Radionuclide myocardial perfusion imaging (MPI) plays a vital role in the evaluation and management of patients with coronary artery disease. However, because of a steep growth in MPI in the mid 2000s, concerns about inappropriate use of MPI and imaging-related radiation exposure increased. In response, the professional societies developed appropriate-use criteria for MPI. Simultaneously, novel...
BACKGROUND Fractional flow reserve (FFR) measured on catheterization is now widely used for the diagnosis of functional myocardial ischemia in patients with coronary artery disease (CAD). FFR, however, is invasive and carries potential procedural complications. Therefore, the aim of this study was to compare the diagnostic capability in functionally significant stenosis identified on FFR, betwe...
زمینه و هدف: با وجود پیشرفت های وسیع تشخیصی و درمانی، هنوز یک سوم بیمارانی که دچار انفارکتوس حاد میوکارد می شوند، فوت می کنند.آریتمی های قلبی شایعترین علت مرگ در جریان انفارکتوس حاد میوکارد و بلوکهای قلبی دسته مهمی از این آریتمی ها هستند. هدف از این مطالعه، تعیین بروز بلوک های شاخه ای قلب و عوامل خطر دموگرافیک و سوابق بالینی مرتبط با آن در بیماران انفارکتوس قلبی می باشد. روش بررسی: در این مطا...
This document describes extentions to the MPI-1.2 and MPI-2 standards for introducing process fault-tolerance in MPI.
Initial versions of MPI were designed to work eciently on multi-processors which had very little job control and thus static process models. Subsequently forcing them to support a dynamic process model would have aected their performance. As current HPC systems increase in size with greater potential levels of individual node failure, the need arises for new fault tolerant systems to be devel...
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