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Libraries(Hawk): Difference between revisions
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For '''linking flags''' for different compilers, there is an [https://software.intel.com/en-us/articles/intel-mkl-link-line-advisor Intel MKL Link Line Advisor] | |||
'''Static linking''' and [https://software.intel.com/en-us/mkl-linux-developer-guide-using-the-ilp64-interface-vs-lp64-interface 32-bit integer interface] are recommended if applicable. | |||
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This environment variable is currently set as default for all users. | This environment variable is currently set as default for all users. | ||
<font color="red">'''Attention'''</font>: It seems that with '''mkl/19.1.1''' this bypass has been '''removed'''. Please keep using '''mkl/19.1.0''' for now for '''better performance'''. | |||
== Further libraries == | == Further libraries == | ||
In order to get an up-to-date list, please refer to | In order to get an up-to-date list, please refer to | ||
<pre>module avail</pre> | <pre>module avail</pre> | ||
Revision as of 12:59, 8 April 2020
AOCL
The AMD Optimizing CPU Libraries (AOCL) are optimized to utilize AMD EPYC processors in an optimal way and are available for gcc and aocc with
module load aocl/2.1.0
| Library | Purpose | Source | License | URL |
|---|---|---|---|---|
| amd-blis/amd-blis-mt | BLIS is a portable software framework for instantiating high-performance
BLAS-like dense linear algebra libraries. |
https://github.com/amd/blis | 3-clause BSD | https://developer.amd.com/amd-aocl/blas-library/ |
| amd-fftw | An AMD optimized FFTW that includes selective kernels and routines
optimized for the AMD EPYC™ processor family. |
https://github.com/amd/amd-fftw | GPLv2 | https://developer.amd.com/amd-aocl/fftw/ |
| amd-libflame | libFLAME is a portable library for dense matrix computations,
providing much of the functionality present in LAPACK. |
https://github.com/amd/libflame | 3-clause BSD | http://developer.amd.com/amd-cpu-libraries/blas-library/#libflame |
| amd-libm | amd-libm implements optimized trigonometric, logarithmic/exponential, power, etc. functions that should perform better than the system libm. Provides vector intrinsics of these as well (currently for __m128 __m128d types). |
proprietary | AMD LibM EULA | http://developer.amd.com/amd-cpu-libraries/amd-math-library-libm/ |
| amd-rng | AMD Random Number Generator Library is a pseudorandom number generator library. It provides a comprehensive set of statistical distribution functions and various uniform distribution generators (base generators) including Wichmann-Hill and Mersenne Twister. |
proprietary | AMD RNG EULA | http://developer.amd.com/amd-cpu-libraries/rng-library/ |
| amd-securerng | The AMD Secure Random Number Generator (RNG) is a library that provides APIs to access the cryptographically secure random numbers generated by AMD’s hardware-based random number generator implementation. |
proprietary | AMD SecureRNG EULA | http://developer.amd.com/amd-cpu-libraries/rng-library/#securerng |
Intel MKL
Intel MKL is available with
module load mkl/<version>
For linking flags for different compilers, there is an Intel MKL Link Line Advisor
Static linking and 32-bit integer interface are recommended if applicable.
Intel MKL seems to be using a 'Cripple AMD CPU' functionality that suppresses AVX/AVX2 code paths for AMD CPUs even though these are capable.
This behavior can be bypassed with an undocumented environment variable set during runtime:
export MKL_DEBUG_CPU_TYPE=5 ./a.out
In tests with Intels MKL sample codes setting this environment variable has lead to a 2-3x better performance on a Zen 2 AMD CPU.
This environment variable is currently set as default for all users.
Attention: It seems that with mkl/19.1.1 this bypass has been removed. Please keep using mkl/19.1.0 for now for better performance.
Further libraries
In order to get an up-to-date list, please refer to
module avail