scholarly journals Designing expression templates with concepts

2017 ◽  
Vol 47 (11) ◽  
pp. 1521-1537
Author(s):  
Bruno Bachelet ◽  
Loïc Yon
Keyword(s):  
Expression Templates

scholarly journals A New Vectorization Technique for Expression Templates in C++

2012 ◽  
Vol 10 (4) ◽  
Author(s):  
J Progsch ◽  
Y Ineichen ◽  
A Adelmann
Keyword(s):  
High Performance ◽  
Performance Gap ◽  
New Approach ◽  
Loop Unrolling ◽  
Basic Linear Algebra Subprograms ◽  
Template Library ◽  
Abstract Interface ◽  
Expression Templates ◽  
Performance Computing ◽  
Expression Template

Vector operations play an important role in high performance computing and are typically provided by highly optimized libraries that implement the Basic Linear Algebra Subprograms (BLAS) interface. In C++ templates and operator overloading allow the implementation of these vector operations as expression templates which construct custom loops at compile time and providing a more abstract interface. Unfortunately existing expression template libraries lack the performance of fast BLAS implementations. This paper presents a new approach - Statically Accelerated Loop Templates (SALT) - to close this performance gap by combining expression templates with an aggressive loop unrolling technique. Benchmarks were conducted using the Intel C++ compiler and GNU Compiler Collection to assess the performance of our library relative to Intel's Math Kernel Library as well as the Eigen template library. The results show that the approach is able to provide optimization comparable to the fastest available BLAS implementations, while retaining the convenience and flexibility of a template library.

scholarly journals Expression Templates Revisited: A Performance Analysis of Current Methodologies

2012 ◽  
Vol 34 (2) ◽  
pp. C42-C69 ◽  
Author(s):  
Klaus Iglberger ◽  
Georg Hager ◽  
Jan Treibig ◽  
Ulrich Rüde
Keyword(s):  
Performance Analysis ◽  
Expression Templates ◽  
A Performance
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