نتایج جستجو برای: only mpi
تعداد نتایج: 1364760 فیلتر نتایج به سال:
The number of multithreaded Message Passing Interface (MPI) implementations and applications is increasing rapidly. We discuss how multithreaded applications can receive messages of unknown size. As is well known, combining MPI Probe/MPI Recv is not threadsafe, but many assume that trivial workarounds exist. We discuss those workarounds and show how they fail in practice by either limiting the ...
Message Passing Interface (MPI) is the de facto standard for programming large scale parallel programs. Static understanding of MPI programs informs optimizations including process placement and communication/computation overlap, and debugging. In this paper, we present a fully context and flow sensitive, interprocedural, best-e↵ort analysis framework to statically analyze MPI programs. We inst...
The Message Passing Interface (MPI) is the dominant programming model for high-performance computing. Applications that use over 100,000 cores are currently running on large HPC systems. Unfortunately, MPI usage presents a number of correctness challenges that can result in wasted simulation cycles and errant computations. In this article, we describe recently developed formal and semi-formal a...
This paper presents a code generation framework for type-safe and deadlock-free Message Passing Interface (MPI) programs. The code generation process starts with the definition of the global topology using a protocol specification language based on parameterised multiparty session types (MPST). An MPI parallel program backbone is automatically generated from the global specification. The backbo...
Although the design and implementation of parallel processing infrastructure is not considered a mainstream IS topic, a working knowledge of its capabilities can have an important influence on improving the design of on-line systems. In order to illustrate some of the advantages and limitations of using parallel processing in information systems two experiments were run to collect multiple node...
مقدمه: بیماران مبتلا به تالاسمی ماژور نیاز به ترانسفوزیون مکرر خون دارند و اگر به خوبی درمان نشوند در معرض خطر اختلال عملکرد قلبی هستند. حتی دربیمارانی که دسفرال را به صورت منظم دریافت کرده اند ، بافت قلب غیرطبیعی خواهد بود که ثانویه به رسوب آهن، فیبروز ، هیپرتروفی و اثرات ناشی ازکم خونی مزمن می باشد. از آنجا که درگیری قلبی یکی از عمده ترین علل معلولیت ومرگ و میر در مبتلایان به تالاسمی ماژوراست...
The .Net development platform and the C# language, in particular, offer many benefits to programmers including increased productivity, security, reliability and robustness, as well as standards-based application portability and cross-language inter-operation. The Message Passing Interface (MPI) is a standardised high performance computing paradigm with efficient, frequently-used implementations...
The present study aimed to discuss and evaluate the diagnostic performances and incremental clinical values of combined computed tomography coronary angiography (CTCA) and single photon myocardial perfusion imaging (MPI) for the detection of functionally relevant coronary stenoses (FRCS). In total, 54 patients underwent CTCA, MPI and coronary angiography (CAG) within 30 days. The diagnostic per...
AIMS To characterize patient radiation doses from nuclear myocardial perfusion imaging (MPI) and the use of radiation-optimizing 'best practices' worldwide, and to evaluate the relationship between laboratory use of best practices and patient radiation dose. METHODS AND RESULTS We conducted an observational cross-sectional study of protocols used for all 7911 MPI studies performed in 308 nucl...
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