With this advantage we can take c and fortran programmers from serial programming to successful parallelization of exercises in a half day, assuming only introductory knowledge, but also providing a useful experience for intermediate parallel programmers. Performance tools february 2015 markus geimer, alexandre strube. Two processes handle 2 rows and two processes handle 3 rows. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files. Scalasca uses a highly scalable eventtrace replay mechanism for its analysis. The right pane shows the distribution of values over all processes for the selected call path. For example, communication time is a subset of execution time. I ran a few tests last night in the scala repl to see if i could think of different ways to download the contents of a url to a string or file in scala, and came up with a couple of different solutions, which ill share here download url contents to a string in scala. If you dont have it installed, download java from oracle java 8, oracle java 11, or adoptopenjdk 811. We present the complete workflow of performance engineering, including instrumentation, measurement profiling and tracing, timing and papi counters. This page contains a comprehensive archive of previous scala releases. Scalasca 11, v ampir 12, hpct oolkit, craypat 14, active harmony 15, among others to provide coherent access to performance counters that can be found on a wide. Buy scala for beginners this book provides a stepbystep guide for the complete beginner to learn scala. For security reasons it is highly recommended that users transfer files between local workstations and either discover or dirac mass storage, using the bastion service direct mode described below command line file transfer.
Scala how to download url contents to a string or file. Because scalasca usually includes outdated version of cube. My current company uses scala for serverside programming in their projects. First, make sure you have the java 8 jdk or java 11 jdk installed. The scala tutorials in this section provide a list of key concepts to learn scala programming. To make measurements with scalasca, user application programs need to be instru mented. Scalasca is a software tool that supports the performance optimization of parallel programs by measuring and analyzing their runtime behavior. I ran a few tests last night in the scala repl to see if i could think of different ways to download the contents of a url to a string or file in scala, and came up with a couple of different solutions, which ill share here. Extending scalascas analysis features 3 information where in the code, a particular issue appeared.
File transfer from user to the discover cluster nasa. Scala tutorial learn how to create val function val vs def. It is particularly useful to programmers, data scientists, big data engineers, students, or just about anyone who wants to get up to speed fast with scala especially within an enterprise context. By downloading and using this software you automatically agree to comply with the regulations as described in the scalasca v2 license agreement unlike scalasca 1. Your contribution will go a long way in helping us.
A comprehensive stepbystep guide, 2nd edition 2011 by martin odersky, lex spoon, bill venners. All available versions the scala programming language. Analysing the scalability of climate codes using new. Parallel performance evaluation tools from the vihps virtual institute high productivity supercomputing are introduced and featured in handson exercises with scalasca, vampir and tau. A well designed event trace data format is the basis of all tracebased analysis methods.
Here ill describe how to install scalasca with converters support. This software is a product of scala business solutions nv. Before any performance data can be collected, the target application needs to be instrumented. The example measurements available for download on the scalasca. You can either download binaries or source code archives for the latest stable or previous release or access the current development aka. Quick start with scala scala introduction scala variables scala object scala companion object scala functions scala higher order functions. Usage of the scalasca toolset for scalable performance analysis. A generic and configurable sourcecode instrumentation. Note that the mpi c compiler wrapper and flags are not used for building bt, but. In my upc related project i tightly worked with tool called scalasca. Optionally, scalasca v2 can be configured to use the following support libraries. Setup introduction to parallel programming with mpi github pages.
Enhancing software portability with hardware parametrized. Hereby, the trace for every process is stored in a separate. Usage is primarily via the scalasca command with appropriate action. A generic and configurable sourcecode instrumentation component. Setup introduction to parallel programming with mpi. Because scalasca usually includes outdated version of. I utilized cube gui as well as apis from scalasca and performed conversion from my own tracing format to cubes or scalascas epilog format to be able to use cube.
To build libcfd2lcs on a currently supported platform. I prefer to install scalasca without cube, and then install cube separately. At the center of our activities lies the development of scalasca, a. File transfer from user to the discover cluster nasa center. Search for scala on givero search external link about file types supported by scala. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. It is licensed under the bsdstyle license scalasca is mostly used for profiling scientific and engineering applications using openmp andor mpi. Scalasca is a free and opensource software for measurement, analysis, and optimization of parallel program performance. A way to overcome this limitation is to make use of autotuning. Abstract scalasca is a performance toolset that has been specifically. Stack overflow for teams is a private, secure spot for you and your coworkers to find and share information.
Second, the program dimension is organized in a calltree hierarchy. Methods that return a value must have an equal sign before the body of the method. Release notes log in required the complete history of changes to the scala. Pdf scalable tools for nonintrusive performance debugging. Take a look at the definition of the actor behaviors, messages and how to start up an actorsystem. This user guide is intended to address the needs of users which are new to scalasca as. For security reasons it is highly recommended that users transfer files between local workstations and either discover or dirac mass storage, using the bastion service direct mode described below. Our antivirus scan shows that this download is safe.
They are all defined in a class that is imported by default scala. A tour of scala an interactive scala tutorial printing. Scalable tools for nonintrusive performance debugging of. Full example code akka quickstart with scala lightbend. Analysing the scalability of climate codes using new features.
First, we call the method do which basically returns a task or future in scala, but the interesting part is what happens inside it. Scalasca is an open source application for profiling mpi programs. How do i download the contents of a url to a string or file in scala. The application being analysed needs first of all to be instrumented. Analysing the scalability of climate codes using new features of scalasca monika harlacher1, alexandru calotoiu2, john dennis3, and felix wolf2 1 universitat siegen, 57068 siegen, germany.
Follow these instructions to create a project with the mpi compiler and library. What is scalasca, and where is it installed on xsede. Cube files are also available for download on the scalasca. Scalasca has several tracing format conversion tools integrated into it, which are handy.
An autotuning system is capable of adapting source code based on con gu. Take a look at the definition of the actor behaviors, messages and how. The analysis identifies potential performance bottlenecks in particular those concerning communication and synchronization and offers guidance in exploring their causes. Refer jdk compatibility for scalajava compatiblity detail. Make sure you can compile c or fortran programs using a compiler or a development environment. Oct 08, 2012 scalasca and trace conversion tools in my upc related project i tightly worked with tool called scalasca. Scalasca supports an incremental performance analysis procedure that integrates runtime summaries with indepth studies of concurrent behavior via event tracing, adopting a strategy of. Scalasca is an opensource performance analysis tool set specifically designed for use on largescale systems, including ibm blue gene and cray xt systems. Before this line, lda is different on each process if the dimension of the matrix is odd. Lets analyze it just to make sure we all are in the same page. In this paper, we introduce the open trace format version 2 otf2. Scala tutorials programming tutorials by sourcetricks.
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