Which MPI product, which version? Does it make a difference?.

Are there any Top500 submission rules to be aware of? What is allowed, what isn't?.

How to you tune the parameters ( N, NB, P, Q, memory-alignment, etc) for the HPL.dat file (without spending too much time trying each possible permutation - esp with large problem sizes N)?.

To give you an idea what kind of answers I would appreciate here are some sub-questions (with links): What are your best practices to get the best possible LINPACK benchmark ( HPL) result to submit for the Top500 supercomputer list? Where as the other peeps although also seeing higher GFLOPS were also seeing higher power usage.Given a large Linux HPC cluster with hundreds/thousands of nodes. Whats strange for me compared to the results at ananadtech is that when I use either the version you have posted or the Korean version the power draw of my system is identical (248-250w) but the GFLOP are around 70-74 for your version and 151-156 for the Korean version. Looking at their results it does not look this way. Was asking if your version uses AVX/2 on Zen based architectures. Some minor changes.Hi, someone over at ananadtech forum (.vodka) Updated CPUID HWMonitor to version 1.36. Fixed insufficient memory error on 32-bit systems. Improved multithreading efficiency for the benchmark.

Added several optimizations for AMD CPUs. Linpack Xtreme for Linux | Mirror #1 | Mirror #2 Linpack Xtreme for Windows | Mirror #1 | Mirror #2 * Updated CPUID HWMonitor to version 1.43. Make sure to keep an eye on the temperatures as Linpack generates excessive amount of stress like never seen before. Watch this video for a short comparison of Prime95 vs. The bootable version is considered to be the most superior as the Linux SMP kernel is a lot more sensitive to hardware instabilities than Microsoft Windows. Linpack Xtreme is available for Windows, Linux, and as a bootable media.

Modern hardware requires modern stress testing methodology with support for the latest instructions sets. LinX, IntelBurnTest, OCCT use outdated Linpack binaries from 2012. Linpack Xtreme was created because Prime95 is no longer effective like it used to be. Linpack uses partial pivoting to assure the accuracy of the results. The generalization is in the number of equations (N) it can solve, which is not limited to 1000. Linpack solves a dense (real*8) system of linear equations (Ax=b), measures the amount of time it takes to factor and solve the system, converts that time into a performance rate, and tests the results for accuracy. Linpack tends to crash unstable PCs in a shorter period of time compared to other stress testing applications. Best used to test stability of overclocked PCs. Linpack is a benchmark and the most aggressive stress testing software available today. Linpack Xtreme is a console front-end with the latest build of Linpack (Intel Math Kernel Library Benchmarks 2018.3.011).

Linpack benchmark amd