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Re: GLPSOL in webassemby faster than native ?

From: Domingo Alvarez Duarte
Subject: Re: GLPSOL in webassemby faster than native ?
Date: Tue, 29 Sep 2020 14:13:57 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

Hello Andrew !

I found why GLPK in wasm was faster with "--cuts" option than native, it was due wasm using qsort from muslc that is a "stable sort", I've added it to my GLPK repository and running all models in the "examples" folder only "color.mod" produces a different solution (that seems to be valid anyway).

I've update the binaries here .

Still intriguing is that the windows 32 bits build have the performance degraded.

Cheers !

On 21/9/20 17:11, Andrew Makhorin wrote:
On Mon, 2020-09-21 at 16:09 +0200, Domingo Alvarez Duarte wrote:
Hello Andrew !

Are you saying that floating point calculations are more
efficient/precise in webassembly ?
No. I meant that due to floating-point computations running the same
computer program with the same data as a rule produces different results
on different platforms.

Cheers !

On 21/9/20 15:08, Andrew Makhorin wrote:
Does someone can give a possible explanation ?
floating-point computations

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