HPL_dlaswp05T(3)

💅 HPL_dlaswp05T — bestie edition

ok so you found a page from the HPL Library Functions manual, and honestly? it's giving "niche but iconic". let's get into it 🫶

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✨ NAME ✨

HPL_dlaswp05T — literally copies rows of U into A. that's the whole vibe. no cap. 🦋

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🌸 SYNOPSIS 🌸

#include "hpl.h"

void HPL_dlaswp05T( const int M, const int N, double * A, const int LDA,
const double * U, const int LDU, const int * LINDXA, const int * LINDXAU
);

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💖 DESCRIPTION 💖

okay so picture this: HPL_dlaswp05T takes columns of U — the ones at global offset LINDXAU, bestie — and copies them into rows of A, at the positions that LINDXA is pointing at. that's it. that's the function. she's efficient, she's focused, she ate 💅✨

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🎀 ARGUMENTS 🎀

• M — (local input) const int — on entry, M is the number of columns of U that should be copied into A. M must be at least zero. yes ma'am, zero is allowed, negative is NOT 🔥
• N — (local input) const int — on entry, N is the length of the columns of U that will be copied into rows of A. N must be at least zero. same rules, no negativity in this house 🙈
• A — (local output) double * — on entry, A points to an array of dimension (LDA,N). on exit, the rows of this array specified by LINDXA get replaced by columns of U indicated by LINDXAU. she's a glow-up, she's a transformation, she's main character energy 👑
• LDA — (local input) const int — on entry, LDA specifies the leading dimension of the array A. LDA must be at least MAX(1,M). periodt.
• U — (local input/output) const double * — on entry, U points to an array of dimension (LDU,*). this array contains the columns that are to be copied into rows of A. she's the source, she's the blueprint, she's the moment ✨
• LDU — (local input) const int — on entry, LDU specifies the leading dimension of the array U. LDU must be at least MAX(1,N). don't skip this, the vibe check will fail 😭
• LINDXA — (local input) const int * — on entry, LINDXA is an array of dimension M that contains the local row indexes of A that should be copied from U. she's the map, she's the GPS 🧚
• LINDXAU — (local input) const int * — on entry, LINDXAU is an array of dimension M that contains the local column indexes of U that should be copied in A. her twin, her partner in crime, lowkey essential 💜

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🌈 SEE ALSO 🌈

• HPL_dlaswp00N (3)
• HPL_dlaswp10N (3)
• HPL_dlaswp01N (3)
• HPL_dlaswp01T (3)
• HPL_dlaswp02N (3)
• HPL_dlaswp03N (3)
• HPL_dlaswp03T (3)
• HPL_dlaswp04N (3)
• HPL_dlaswp04T (3)
• HPL_dlaswp05N (3)
• HPL_dlaswp05T (3)
• HPL_dlaswp06N (3)
• HPL_dlaswp06T (3)

the whole friend group, fr fr 🫶 go say hi to all of them.

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and that's the page, bestie 💖 this one's from HPL 2.2, dated February 24, 2016 — yes she's a 2016 girlie and she's still slaying. mwah, go copy some rows ✨🎀💅