Outstanding performance on Intel® processors
Achieve outstanding performance with the math library that is highly optimized for Intel® Itanium® 2, Intel® Xeon®, Intel® Pentium® 4, and Intel® Core™2 Duo processor-based systems. Special attention has been paid to optimizing multi-threaded performance for the new Quad-Core Intel® Xeon® processor 5300 series. Intel MKL performance is competitive with that of other math software packages on non-Intel processors.

Multi-core ready

Thread-Safety
All Intel MKL functions are thread-safe.  A non-threaded serial version of Intel MKL is also provided.

Automatic runtime processor detection
A runtime check is performed so that processor-specific optimized code is executed, ensuring that your application achieves optimal performance on whatever system it is executing on.

Support for C and Fortran interfaces
Unlike some alternative math libraries that require you to purchase multiple products to get C and Fortran interfaces, Intel MKL includes both.

Support for all Intel® processors in one package
Alternative math libraries require you to purchase multiple products for support of Intel Itanium 2, Intel Xeon, and Pentium 4 processors. Intel MKL includes support for ALL of these processors in a single, inexpensive package.

Royalty-free distribution rights
Redistribute unlimited copies of the runtime libraries with your software.

User forum
Share experiences with others at the Intel engineer moderated Intel MKL Discussion Forum.

Intel® Premier Support
Receive one year of world-class technical support with every purchase of Intel MKL. During this period, you can download product upgrades free of charge, including major version releases. For more information, visit the Intel Registration Center.

Linear Algebra - BLAS and LAPACK
Deploy BLAS and LAPACK routines that are highly optimized for Intel processors, and that provide significant performance improvements over alternative implementations. Intel MKL 9.1 is compliant with the new 3.1 release of LAPACK.

Linear Algebra - ScaLAPACK
Available in the Cluster Edition only. The Intel MKL implementation of ScaLAPACK can provide significant performance improvements over the standard NETLIB implementation.

Linear Algebra- Sparse Solvers
Solve large, sparse linear systems of equations with the PARDISO Direct Sparse Solver – an easy-to-use, thread-safe, high-performance, and memory-efficient software library licensed from the University of Basel. Intel MKL also includes Conjugate Gradient and FGMRES iterative sparse solvers.

Fast Fourier Transforms (FFT)
Employ multi-dimensional FFT routines (1D up to 7D) with mixed radix support and a modern, easy-to-use C/Fortran interface. Intel MKL also provides a set of C routines ("wrappers") that mimic the FFTW 2.x and 3.0 interfaces making it easy for current FFTW users to compare performance with Intel MKL.

Fast Fourier Transforms for Distributed Memory Multiprocessors (Clusters)
Available in the Cluster Edition only. Improve your FFT performance even more by distributing the work over a large number of processors.

Vector Math Library
Increase application speeds with vectorized implementations of computationally intensive core mathematical functions (power, trigonometric, exponential, hyperbolic, logarithmic, and so on).

Vector Random Number Generators
Speed up your simulations using our vector random number generators, which can provide substantial performance improvements over scalar random number generator alternatives.

LINPACK Benchmark
Intel provides free LINPACK benchmark packages to help you obtain the highest possible benchmark results for your Intel® architecture-based systems.

In this release of Intel Math Kernel Library (Intel MKL), we have focused on three primary objectives.  First and always foremost is providing optimized multi-threaded performance for the newest Intel Processors (Quad-Core Intel Xeon processor 5300 series and its close relative the Dual-Core Intel® Xeon® processor 5100 series).  Secondly, we have re-architected Intel MKL to have a new “layered” architecture to better support the varied usage models of our users.  Lastly, we have merged the standard and cluster editions of Intel MKL so we now have a single, comprehensive package.

Optimizations for the new Quad-Core Intel Xeon processor 5300 series
For more information see section “Performance Improvements in Version 10.0” below.

New “Layered” Architecture
In Version 10.0 of Intel MKL we have re-architected the product to provide multiple layers so that the base Intel MKL package supports numerous configurations of interfaces, compilers, and processors in a single package.  Many other library vendors have specific versions that must be found, downloaded, installed, and tested depending on the particular configuration of your development environment.  This new Intel MKL architecture is intended to provide maximum support for our varied customers’ needs, while minimizing the effort it takes to obtain and utilize the great performance of Intel MKL.  For more information, please refer to the “Using Intel MKL Parallelism” section of the Intel MKL User’s Guide.

Threading Layer
All Intel MKL threading has been isolated to this layer.  Link to the version of this layer that matches your development environment and rest assured that Intel MKL will not have threading incompatibilities with the threading in your application.

• Fully Compliant with Microsoft, GCC, and Intel Compiler Threading
  Separate versions of this layer are provided that have been compiled with different compilers (Intel, MSFT, GCC) enabling Intel MKL to be fully compliant with threading mechanisms used by whatever development environment your overall application is using.
• Serial Version of Intel MKL
  A version of the threading layer that has no threading is also provided.  This ensures that Intel MKL will not conflict in any way is your application should you choose not to use the threading within Intel MKL.

• LP64, ILP64 interfaces
  An ILP64 (64-bit integer data) interface is now included in the base package of Intel MKL (no longer a separate download).  New layered model has made this possible minimal increase in product package size.
• Separate layers for different compiler parameter return value mechanisms (Intel, GCC, MSFT)
• Cray-style naming support

• The heart of Intel MKL.  A runtime check is performed so that processor-specific optimized code is executed.  Users can build custom shared objects to include only the specific code needed and thus reduce the size of this layer if size is an issue.

PARDISO Direct Sparse Solver

Sparse BLAS

Sparse 0-based indexing

Single precision support added

Level-3 Sparse BLAS triangular solvers were threaded

Iterative Solver Preconditioner

ILUT accelerator/preconditioner for the Intel MKL RCI iterative solvers

Vector Math Functions

New Mul, Conj, MulbyConj, CIS, Abs functions.

New “Enhanced Performance” mode
EP Mode is for applications where math function inaccuracies don’t dominate parameter inaccuracies (e.g. Monte Carlo simulations and Media applications)

All VML functions are now threaded

User’s Guide

We have greatly improved our Intel MKL User’s Guide.  It is an indispensable tool for working with Intel MKL.  Visit the Documentation page to download it or view it online.

Performance optimizations were done in all areas of the library. Below are some specific measured performance gains.

BLAS

Threading of DGEMM was improved for small and middle sizes - outer product sizes by 10%, square sizes by 80%

DTRSM, DTRMM, and DSYRK were improved by 5-30%

LAPACK

Significant improvements in Nonsymmetric Eigenproblem due to improvements made on top of LAPACK 3.1

*HETRD improved by 75% on cache

*SYTRD improved by 40% on cache

Successive Bandwidth Reduction approach has been implemented in *HERDB/*SYRDB for a speedup of 2.8 times versus traditional *HETRD/*SYTRD on Dual-Core Intel Xeon 5100 series servers

Improved CROT/ZROT performance by 80%

Improved tridiagonal linear equations solver (DGTSV/SGTSV) by 8-10%

Improved tridiagonal symmetric positive definite linear equations solver (*PTSV) by 8-28%

Improved generalized non-symmetric eigenproblem (*GGEV) by 3-8%, and CGGEV by 30%

Threaded upper triangular real*8 Cholesky decomposition

Performance of (D/S/Z/C)STEDC was improved by 30% and parallelized with OpenMP for up to 100% performance improvement on 4 threads

A complete list of measured performance improvements, including for prior versions of Intel MKL, is available here.

Comprehensive performance charts are show in each product domain page (BLAS, FFT, VML, etc.) as well as on the performance summary page.

Operating Systems
Intel MKL 10.0 supports Linux*, Windows* and Mac OS* X.

Linux variants include: Red Hat*, Suse*, Debian*, Ubuntu*, Asianux*, and other Linux Standard Base 3.1 variants.

For a complete list, please see System Requirements.

Every purchase of an Intel® Software Development Product includes a year of support services, which provides access to Intel Premier Support and all product updates during that time. Intel Premier Support gives you online access to technical notes, application notes, and documentation. Install the product, and then register to get support and product update information.