Jack dongarra has been involved since the origin and formation of the top500 list in 1993, which used his linpack benchmark as the common application for evaluating the performance of supercomputers. The lapack library uses more modern algorithms and code structure. Jack dongarra, distinguished professor of computer science at the university of tennessee, said the linpack test he developed in the 1970s, which has been the basis for the top500 list of the. Jack dongarra, internationallyknown expert in high performance computing hpc, recently spoke at a lecture series sponsored by the ohio supercomputer center osc on jan. Rangsiman ketkaew benchmark your cluster with intel. This technique applies a standard mathematical algorithm based on solving simultaneous linear equations. Professor jack dongarra announces new supercomputer. Pdf linpack benchmark results on pcs and later devices. The benchmark is based on linpack, a software library for performing numerical linear algebra on digital computers that was written in fortran by computer scientists jack dongarra, jim bunch. The linpack for android application is a version created from the original java version of linpack created by jack dongarra. The linpack benchmark was introduced by jack dongarra. Linpack is a software library for performing numerical linear algebra on digital computers. Linpack was originally developed by jack dongarra to give computer users an idea of the time it would take a machine to solve complex problems in linear algebra. Here you can download the latest version of the linpack report.
Jack dongarra, it measures how fast a computer solves a dense. Jack dongarra formulated the linpack system when he aimed at giving computer users a standard measure of computer performance. Growing inequality in supercomputing power pcworld. Its small size and the lack of software flexibility doesnt allow most modern. Top500 shows growing inequality in supercomputing power. The view from the top500 asian scientist magazine science.
The test problem requires the user to set up a random dense matrix a of size n, and a right hand side vector b which is the product of a and a vector x of all 1s. Jack dongarra university of tennessee oak ridge national lab university of manchester. Intel linpack benchmark download license agreement intel. Jack dongarra, creator of the linpack benchmark, and one of the organizers of the top500 ranking of supercomputing. Linpack benchmark is a technique to evaluate the floating point rate of execution of a pc. Objective bayesian model discrimination in followup designs. Mar 30, 2020 the intel optimized linpack benchmark for windows contains the following files, located in the benchmarks \ linpack \ subdirectory of the intel math kernel library intel mkl directory.
Contents of the intel optimized linpack benchmark intel. The road to exascale and legacy software for dense linear algebra. Linpack benchmark results on pcs and later devices roy longbottom. Linpack article about linpack by the free dictionary. Introduced by jack dongarra, they measure how fast a computer solves a dense n by n system of linear equations ax b, which is a common task in engineering. This benchmark was produced by jack dongarra from the linpack package of linear algebra routines. Choosing between windows and linux for high performance computing. Linpack was originally developed by jack dongarra to give computer users an idea of the time it would take a machine to solve complex problems in linear.
Jack dongarra, creator of the linpack benchmark, and one of the organizers of the top500 ranking of. The linpack benchmark is a numerically intensive test that has been used for years to measure the floating point performance of computers. Hpcg is intended as a complement to the high performance linpack hpl benchmark, currently used to rank the top500 computing systems. Jack dongarra, director of the university of tennessees center for information technology research and a distinguished research staff member at oak ridge national laboratory, is perhaps best known for his development of the linpack benchmark application, which is used to evaluate highperformance computing hpc performance and to rank. System year vendor cores rmax gflops rpeak gflops faenov cluster platform sl230s gen8, xeon e52670 8c 2. Stepping up software for exascale exascale computing project. Implements the objective bayesian methodology proposed in consonni and deldossi in order to choose the optimal experiment that better discriminate between competing models. Linpack relies heavily on the general matrix multiply gemm algorithm in the. Standard linpack benchmark app the linpack benchmarks are a measure of a systems floating point computing power. We would like to know how we are doing, and how we could further help you. Oct 24, 2019 linpack is a software library for performing numerical linear algebra on digital computers. Hpl a portable implementation of the highperformance.
We are working hard to improve the lapack windows support but it seems that users still have problems. The road to exascale and legacy software for dense linear algebra or what ive been doing for the last 43 years jack dongarra university of tennessee. Benchmark your cluster using intel distribution for linpack. It was written by jack dongarra more than a decade ago and is still used by see related topics for a link. Hpl is a software package that solves a random dense linear system in double precision 64 bits arithmetic on distributedmemory computers. Supercomputing asia catches up with the cooriginator of the list, jack dongarra, to find out more about its past, present and future. Dont miss hpc luminary, jack dongarra, at intels sc14 booth.
It was written in fortran by jack dongarra, jim bunch, cleve moler. Linpack has been mostly used to test the supercomputer, whose. Aug 09, 2011 it is a yardstick of performance because it is widely used and performance numbers are available for almost all relevant systems. Top500 leaders announce new supercomputer benchmark zdnet. That version is located at the linpack benchmarks are a measure of a systems floating point computing power. Linpack reference jack dongarra, performance of various computers using standard linear algebra software in a fortran environment from here pdf file. To run the benchmark after the graph loads hit press to run. Linpack benchmark results roy longbottoms pc benchmark. Linpack has been mostly used to test the supercomputer, whose best performance was compared and ranked by top500, the most famous hpc benchmark ranking website.
Linpack 2 the kernel benchmark developed from the linpack package of linear algebra routines. Dongarra, piotr luszczek, and antoine petitet july 2002 abstract this paper describes the linpack benchmark 41 and some of its variations commonly used to assess perfor. With linpack you get the good, the bad, and the ugly, said jack dongarra, university distinguished professor in the department of computer science at the university of tennessee. Doe, ibm supercomputer shatters linpack test internetnews. Theoretical peak and linpack 100 performance numbers of various cpus. Jan 25, 2018 the view from the top500 the top500 list may have begun almost as an accident, but it has nonetheless come to shape the way we think about supercomputers.
Jack dongarra on ecpfunded software projects for exascale. Introduced by jack dongarra, they measure how fast a computer solves a dense n by n system of. It was written in fortran by jack dongarra, jim bunch, cleve moler, and gilbert stewart, and was intended for use on supercomputers in the 1970s and early 1980s. He holds the position of a distinguished research staff member in the computer science and mathematics division at oak ridge national laboratory, turing fellowship in the school of mathematics at the university of manchester, and is an adjunct professor in the computer science department. Below are some popular linear algebra software packages in use. The following posts are exact copies of entries to the university of tennessee blog on the previous windowshpc portal site. It can thus be regarded as a portable as well as freely available implementation of the high performance computing linpack benchmark. The authors of this carefully structured guide are the principal developers of linpack, a unique package of fortran subroutines for analyzing and solving various systems of simultaneous linear algebraic equations and linear least squares problems. Here is a version of linpack for windows mobile os. Jul 10, 20 since 1993, jack dongarra, distinguished professor of computer science at ut has led the ranking of the worlds top 500 supercomputers.
There is a good way to find out, the linpack benchmark. Linpack has officially been superseded by the lapack library. Jan 18, 2008 the following posts are exact copies of entries to the university of tennessee blog on the previous windowshpc portal site. Linpack measures cpu performance in floating point operations per second flops. Now, jack dongarra, distinguished professor of computer science at the university of tennessee, knoxville, creator of the top500, and linpacks inventor thinks the benchmark is showing its age and. The linpack benchmark is a method of measuring the floating point rate of execution of a computer by running a program that solves a system of linear equations. Dec 31, 2014 the linpack for android application is a version created from the original java version of linpack created by jack dongarra. Ran the code in hybrid mode, one mpi process per processor and each process launched threads equal to no. Nov 20, 20 joab jackson jack dongarra that night, dongarra suggested that linpack, created in the 1970s, is no longer the best metric to use to estimate supercomputer performance.
Jack dongarra to obtain rolled source blas, add droll to the command lines. May 06, 2012 intel linpack benchmark download license agreement. Introduced by jack dongarra, they measure how fast a computer solves a dense n by n system of linear equations ax b, which is a common task in engineering the latest version of these benchmarks is used to build the top500 list, ranking the worlds most powerful supercomputers. Jack dongarra, it measures how fast a computer solves a dense n by n system of linear equations ax b.
Professor jack dongarra announces new supercomputer benchmark. Department of energy doe thursday said that a bluegenel supercomputer built by ibm for nuclear arms research runs at a record 70. Jack dongarra, distinguished professor of computer science at the university of tennessee, said the linpack test he developed in the 1970s, which has been the basis for the top500 list of the worlds fastest computers for the past 20 years, is no longer the most useful benchmark for how well a system can perform. Microsoft windows azure top500 supercomputer sites. If you plan to attend sc14 in new orleans, youre in for a treat. Cycle peak linpack 100 system time performance performance ef. Since 1993, jack dongarra, distinguished professor of computer science at ut has led the ranking of the worlds top 500 supercomputers. Linpack reference jack dongarra, performance of various computers using standard linear algebra software in a fortran environment from here pdf file including numerous results for minicomputers, workstations, mainframes and supercomputers. Through the consistent use of the linpack benchmark, the top500 list provides a standardized measure of supercomputers over the past 25 years. The linpack benchmarks are a measure of a systems floating point computing power. Dont miss hpc luminary, jack dongarra, at intels sc14. Sep 23, 2010 it is a yardstick of performance because it is widely used and performance numbers are available for almost all relevant systems. Dongarra born july 18, 1950 is a university distinguished professor of computer science in the electrical engineering and computer science department at the university of tennessee.
The high performance conjugate gradients hpcg benchmark project is an effort to create a new metric for ranking hpc systems. Nov 12, 2014 jack and his crew at the university of tennessee are playing a major role in making that happen. Frequent asked questions on the linpack benchmark the netlib. It is a simple benchmark and results are available for thousands of systems going back several decades. Ohio supercomputer center hosts jack dongarra, renowned high. A detailed description as well as a list of performance results on a wide variety of machines is available in postscript form from netlib. The view from the top500 the top500 list may have begun almost as an accident, but it has nonetheless come to shape the way we think about supercomputers. The original linpack benchmark is, in some sense, an accident. Choosing between windows and linux for high performance. Ohio supercomputer center hosts jack dongarra, renowned. The road to exascale and legacy software for dense linear. Joab jackson jack dongarra that night, dongarra suggested that linpack, created in the 1970s, is no longer the best metric to use to estimate supercomputer performance.
The muchcelebrated biannual top500 list is compiled using dongarras benchmark system, called linpack. It is the most widely recognized and discussed metric for ranking highperformance computing systems. Dongarra is one member of the committee that puts together the top500 list twice a. Linpack benchmark results on pcs roy longbottoms pc. I added the authors name in the beginning of each entry and edited the posting dates to reflect the original date of the entry. Performance of various computers using standard linear equations software, jack dongarra, university of tennessee, knoxville tn. It was created in the 1970s by jim bunch, jack dongarra, clee moler, and gilbert stewart. An exascale software discussion with hpc veteran jack dongarra. He holds the position of a distinguished research staff member in the computer science and mathematics division at oak ridge national laboratory, and is an adjunct. Columbus, ohio jan 17, 2007 click here to view the streaming video from this event. Jul 10, 20 jack dongarra, distinguished professor of computer science at the university of tennessee, said the linpack test he developed in the 1970s, which has been the basis for the top500 list of the. Over the years a test known as the linpack benchmark has become a gold standard when comparing performance. This guide supports both the casual user of linpack who simply requires a library subroutine, and the specialist who wishes to modify.
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