Intel(R) Math Kernel Library for Linux* OS User's Guide

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Intel® Math Kernel Library Structure 3Table 3-2High-level Directory Structure (continued)Directory/lib/64ContentsStatic libraries and shared objects for the IA-64architecture (Itanium® processor family)/lib/em64t Static libraries and shared objects for the Intel® 64architecture/man/en_US/man3Man pages for Intel MKL functions for the stand-aloneIntel MKL/testsSource and data files for tests/tools/builderTools for creating custom dynamically linkable libraries/tools/environment/tools/plugins/com.intel.mkl.help/documentation/en_US/mkl/man/en_US/man31. Fortran 95 interface to BLAS2. Fortran 95 interface to LAPACKShell scripts to set environmental variables in the usershellEclipse* IDE plug-in with Intel MKL Reference Manual inWebHelp format. See mkl_documentation.htm formore information.Documentation for Intel MKL included in the Intel® C++Compiler Professional Edition or Intel® Fortran CompilerProfessional Edition.Man pages for Intel MKL functions in the Intel C++Compiler Professional Edition or Intel Fortran CompilerProfessional Edition.Layered Model ConceptStarting with release 10.0, Intel MKL uses a layered model.There are four essential parts of the library:1. Interface layer2. Threading layer3. Computational layer4. Compiler Support Run-time libraries.Each part consists of several libraries that process independent cases in this part. Forexample:• On systems based on the Intel 64 of IA-64 architecture, the libmkl_intel_lp64.alibrary in the Interface layer adapts Intel MKL to the use of 32-bit integer types andthe way how Intel® compilers return function values.3-3
3 Intel® Math Kernel Library User’s Guide• The libmkl_intel_thread.a library in the Threading layer adapts Intel MKL to theOpenMP* implementation used by Intel compilers, and the libmkl_sequential.alibrary adapts Intel MKL to the non-threaded mode.The Computational layer is the bulk of Intel MKL. The library in this layer contains onlycode needed for pure computations, without adaptation to interfaces or OpenMP threading.Being organized this way, Intel MKL avoids duplication of the same code in differentlibraries and thus considerably saves space.You can combine Intel MKL independent libraries to meet your needs by linking with onelibrary in each part layer-by-layer. Once the interface library is selected, the threadinglibrary you select picks up the chosen interface, and the computational library usesinterfaces and OpenMP implementation (or non-threaded mode) chosen in the first twolayers. To learn which libraries to link with your application, see Chapter 5.Table 3-3 provides more details of each layer.Table 3-3LayerInterface LayerThreading LayerIntel® MKL LayersDescriptionMatches compiled code of your application with the threading and/orcomputational parts of the library. This layer provides:• LP64 and ILP64 interfaces(see Support for ILP64 Programming for details).• Compatibility with compilers that return function values differently.• A mapping between single-precision names and double-precisionnames for applications using Cray*-style naming (SP2DPinterface).SP2DP interface supports Cray-style naming in applicationstargeted for the Intel 64 or IA-64 architecture and using the ILP64interface. SP2DP interface provides a mapping betweensingle-precision names (for both real and complex types) in theapplication and double-precision names in Intel MKL BLAS andLAPACK. Function names are mapped as shown in the followingexample for BLAS functions *GEMM:SGEMM -> DGEMMDGEMM -> DGEMMCGEMM -> ZGEMMZGEMM -> ZGEMMMind that no changes are made to double-precision names.This layer:• Provides a way to link threaded Intel MKL with different threadingcompilers.• Enables you to link with a threaded or sequential mode of thelibrary.This layer is compiled for different environments (threaded orsequential) and compilers (from Intel, GNU*, and so on).3-4
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Getting Assistance forProgramming i
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Getting Assistance for Programming
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Getting Assistance for Programming
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LINPACK and MP LINPACKBenchmarks 11
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LINPACK and MP LINPACK Benchmarks 1
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A Intel® Math Kernel Library User
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Support for Third-PartyInterfacesBT
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Intel(R) Math Kernel Library for Linux* OS User's Guide

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