Intel® Thread Profiler

Definition

The Intel^Ⓡ Thread Profiler is a tool to assist in optimizing multithreaded applications. It shows developers where various performance bottlenecks and impediments to scalability occur in the program.

Discussion

Introduction

Intel^Ⓡ Thread Profiler collects data relevant for multithreaded performance and helps the user understand the cause of various performance problems.

Intel^Ⓡ Thread Profiler can collect data on programs written using OpenMP^∗ or using native threading APIs (Windows^∗ API or POSIX^∗ threads). “^∗Other names and brands may be claimed as the property of others”.

Threading Methodology

Threading for performance is a process with several steps. This process starts with discovering possible parallelism in an existing codebase or algorithm and expressing that parallelism through some threading library or framework (e.g., OpenMP, Intel^ⓇThreading Building Blocks, native threading APIs). Next, the threaded code must be debugged and analyzed for correctness with testing...