Optimizing HPC Applications with Intel Cluster Tools: Hunting Petaflops
Alexander Supalov, Andrey Semin, Christopher Dahnken, Michael Klemm
Optimizing HPC purposes with Intel® Cluster instruments takes the reader on a travel of the fast-growing sector of excessive functionality computing and the optimization of hybrid courses. those courses ordinarily mix allotted reminiscence and shared reminiscence programming versions and use the Message Passing Interface (MPI) and OpenMP for multi-threading to accomplish the final word target of excessive functionality at low energy intake on enterprise-class workstations and compute clusters.
The publication specializes in optimization for clusters along with the Intel® Xeon processor, however the optimization methodologies additionally practice to the Intel® Xeon Phi™ coprocessor and heterogeneous clusters blending either architectures. along with the educational and reference content material, the authors deal with and refute many myths and misconceptions surrounding the subject. The textual content is augmented and enriched via descriptions of real-life situations.
What you’ll learn
- Practical, hands-on examples exhibit tips to make clusters and workstations in line with Intel® Xeon processors and Intel® Xeon Phi™ coprocessors "sing" in Linux environments
- How to grasp the synergy of Intel® Parallel Studio XE 2015 Cluster version, together with Intel® Composer XE, Intel® MPI Library, Intel® hint Analyzer and Collector, Intel® VTune™ Amplifier XE, and plenty of different invaluable tools
- How to accomplish fast and tangible optimization effects whereas refining your knowing of software program layout principles
Who this e-book is for
software program execs will use this ebook to layout, strengthen, and optimize their parallel courses on Intel systems. scholars of computing device technology and engineering will price the booklet as a entire reader, appropriate to many optimization classes provided all over the world. The amateur reader will get pleasure from an intensive grounding within the intriguing global of parallel computing.
Table of Contents
Foreword through Bronis de Supinski, CTO, Livermore Computing, LLNL
Chapter 1: No Time to learn this Book?
Chapter 2: evaluation of Platform Architectures
Chapter three: Top-Down software program Optimization
Chapter four: Addressing method Bottlenecks
Chapter five: Addressing software Bottlenecks: disbursed Memory
Chapter 6: Addressing program Bottlenecks: Shared Memory
Chapter 7: Addressing software Bottlenecks: Microarchitecture
Chapter eight: software layout Considerations
LOOP finish LOOP commence at example.F90(15,8) the rest comment #15018: loop used to be no longer vectorized: no longer internal loop LOOP start at example.F90(13,6) comment #15018: loop used to be now not vectorized: no longer internal loop [...] LOOP commence at example.F90(14,7) comment #15003: PERMUTED LOOP was once VECTORIZED LOOP finish [...] LOOP finish LOOP finish LOOP finish [...] LOOP finish LOOP finish LOOP finish LOOP finish LOOP finish [...] Use Interprocedural Optimization upload the compiler flag -ipo to change on.
check in dossier and able to be utilized by next directions. in additional common phrases, latency might be outlined because the saw time period among the beginning of a strategy and its of completion. we will generalize this category of metrics to symbolize extra of a normal type of consumable assets. Time is one type of a consumable source, resembling the time allotted to your activity on a supercomputer. one other vital instance of a consumable source is the quantity of electric strength required to.
check in dossier and able to be utilized by next directions. in additional normal phrases, latency should be outlined because the saw time period among the beginning of a approach and its finishing touch. we will be able to generalize this category of metrics to symbolize extra of a common category of consumable assets. Time is one type of a consumable source, reminiscent of the time allotted on your activity on a supercomputer. one other vital instance of a consumable source is the quantity of electric strength required to.
The consumer can cost a few of these settings, and will alert process directors if any very important misconfigurations are saw. For instance:1. payment that the process software program and the working procedure (OS) models are the most recent. The OS should be rather new to help all very important positive aspects, particularly within the systems and within the processors. typically of thumb (applied principally to Linux distributions), if the OS used to be published greater than a yr ahead of the processor of the server, it.
For a selected subnet Controlling the cloth Fallback MechanismA note of warning for benchmarking: Intel MPI library will more often than not fall again upon the TCP communique if the first cloth refuses to paintings, for a few cause. this can be a worthwhile function out within the box, the place working a software reliably can be extra very important than operating it quickly. that allows you to regulate the fallback direction, input this: $ mpirun –genv I_MPI_FABRICS_LIST dapl,tcp -np