spmvtest1(1)

💖 spmvtest1 — bestie edition 💖

okay so this is a page from section 1 of the manual (the Utility Commands girlies), and it's all about spmvtest1, the SpMV kernel benchmark of a one dimensional Laplacian. no cap, that's the whole vibe. 🦋

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✨ NAME ✨

spmvtest1 — SpMV kernel benchmark of one dimensional Laplacian. literally what it says on the tin, periodt. 💅

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🌸 SYNOPSIS 🌸

spmvtest1 n iter [matrix_type]

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🎀 DESCRIPTION 🎀

so this program computes the matrix-vector multiply of a discretized one dimensional Laplacian of size n using the three point central difference scheme, and a vector (1, ..., 1)^T. yes bestie, that exact vector, iykyk. 🫶

the FLOPS performance is measured as the average of iter iterations — so iter is how many times we run it, and we average, iconic behaviour honestly. ⭐

if necessary, one of the following values can be specified by matrix_type:

• 0 — Measure the performance for the available matrix storage formats 👑
• 1-11 — The number of the matrix storage format ✨

the value n represents the number of the grid points. See Lis User Guide for more information. 📖

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💀 EXIT STATUS 💀

the following exit values are returned:

• 0 — The process is normally terminated 🎉
• unspecified — An error occurred 😭

fr fr, if you get anything other than 0, something went wrong and it's not telling you exactly what. not me being mysterious about it. 🙈

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🦋 SEE ALSO 🦋

lis(3), lsolve(1), esolve(1), hpcg_kernel(1), hpcg_spmvtest(1), spmvtest2(1), spmvtest2b(1), spmvtest3(1), spmvtest3b(1), spmvtest4(1), spmvtest5(1)

http://www.ssisc.org/lis/ 🌈

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and that's the whole page bestie!! this one's from 26 Mar 2014 and it's the man page for spmvtest1 — go forth and benchmark your Laplacian, main character energy only 💖✨🎀