Unfortunately, Intel for some reason decided to set the return value of PILAENV (the recommended block size) for their ScaLAPACK implementation to 512. This value gives less than ideal performance (on Intel's own CPUs!) and I am confused why they did it. Is there a way to overwrite this value, e.g. by an environment variable?
1
There are 1 answers
Related Questions in INTEL-MKL
- After using Intel MKL for Eigen, calculate "VectorXd * Matrix" comlains error
- Understanding Parameters for Intel MKL LINPACK w/MPI `ppn` and `np`
- arithmetic intensity of zgemv versus dgemv/sgemv?
- The Intel MKL LINPACK test indicates too big performance
- fftw3.h license - when does GPL apply here?
- Intel MKL Warning on Jupyter Notebook (Python)
- matrix transposition in multiplication, eigen vs mkl
- Kronecker sparse product
- How to extract residual sum of squares from C LAPACKE_sgelss with LAPACK_ROW_MAJOR
- Intel® oneAPI for Mac OS in 2024
- Eigen + MKL sparse matrix
- Mkl + Eigen vs Mkl Only
- How numpy arrays are overwritten from interpreter point of view?
- How to properly link mkl interfaces with fortls
- How to setup oneMKL lib properly for Visual Studio 2022
Related Questions in SCALAPACK
- Why is there no equivalent of GEEV in scalapack?
- Parameter for pdlapiv or pdlapv2 in ScaLAPACK
- Scalapack Routine PDGESVD_ does not return when called
- what's DESCINIT's leading dimension
- Use of MPI::MPI_C alias
- ScaLAPACK in C++ - pdlaprnt() - Operating system error: Cannot allocate memory
- Making ScaLAPACK - Error in blacstest.f: undefined reference to `dwalltime00_'
- netlib scalapack example1.f - execution problems
- Overwriting PILAENV
- How to link library scalapack and blacs while compilation
- When to switch from lapack to scalack?
- What is the blocking factor used to distribute the array?
- Algorithm to balance a set of differently sized matrix blocks between processes
- Efficient way to find norm of distributed vector in SCALAPACK
- Inconsistent rows allocation in scalapack
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Popular Tags
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
pilaenv returns the positive integer value of the logical blocking size. This value is machine and precision specific. This version provides a logical blocking size which should give good though not optimal performance on many of the currently available distributed-memory concurrent computers. You are encouraged to modify this subroutine to set this tuning parameter for your particular machine. You are encouraged to modify this subroutine to set the tuning parameters for your particular machine using the option and problem size information in the arguments.