How to measure the overall performance of a PETSc program …
When I run a PETSc example in parallel with the flag "-log_summary", the first two tables of information look something like this: Max Max/Min Avg Total
flops - How to calculate cycles /issue for floating point additions …
I was reading FLOPS I came across a questions that asks calculate cycles /issue for floating point additions for 1 core. (I know the number of cores I have) Should I study the architecture of my …
Operation count for GMRES - Computational Science Stack …
Concerning the flops, as far as I understand, we have the following: $O (n)$ steps in the main loop, $O (n)$ steps for Arnoldi iteration, and $O (n)$ steps for matrix multiplication in the least …
flops - Does the arithmetic negate count as a floating point …
Jun 24, 2010 · I'm currently measuring the performance of some code in FLOPS. This code presents some arithmetic negate instructions like this one: d = -a where d and a are floating …
C++ vs Python Advection Diffusion Matrix vs Stencil Based for-loops
Jun 5, 2025 · For instance evaluation of the 5-point Laplacian kernel on an equidistant 2-d grid involves 6 floating point operations, reads 5 values and stores one, for an arithmetic intensity …
flops - The Intel MKL LINPACK test indicates too big performance ...
Feb 26, 2024 · I ran an Intel MKL LINPACK test on an Intel Core i7-14700K processor and got a peak performance of 557 GFLOPS which seems quite unrealistic. Size LDA Align. Average …
parallel computing - Is "flops" a reliable measure of deciding ...
Is "flops" a reliable measure of deciding computational capacity? If we do matrix multiplication and matrix addition of the same size of matrix, do the flops remain the same? Referring to question...
How do I achieve the theoretical maximum of 4 FLOPs per cycle?
How can the theoretical peak performance of 4 floating point operations (double precision) per cycle be achieved on a modern x86-64 Intel CPU? As far as I understand it takes three cycles …
Newest 'performance' Questions - Computational Science Stack …
Sep 17, 2024 · Calculating the number of Flops of SPH density calculation I would like to calculate the number of floating point operations (Flops) my code is performing in my machine.
flops - Is there any difference in execution times between two ...
There are CPUs which are strong in FLOPS - the Alpha is a historical example - but which have more moderate performance in integer computations. This means that an alpha and an x86 …