[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: GLPSOL in webassemby faster than native ?

From: Domingo Alvarez Duarte
Subject: Re: GLPSOL in webassemby faster than native ?
Date: Fri, 25 Sep 2020 15:32:28 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

Hello Mike !

I did changed in several places see here


Changed some declarations to glp_long_double in hope that using it on mainly "sums" would improve performance/accuracy, but right now performance decreased, hashi.mod takes too much time, but defining glp_long_double as glp_double we still have the same results/output as the original GLPK


Cheers !

On 24/9/20 21:18, Michael Hennebry wrote:
On Thu, 24 Sep 2020, Domingo Alvarez Duarte wrote:

I just got glpsol with "long double" working and add binaries for anyone that want to test then here

As noted there it'll benefit from tuning the constants in src/glpk_real.h

Any help/suggestion/comment is welcome !

Note that using long doubles everywhere
would slow down a memory bound computation.
Fetching more data would be required.

One might introduce glp_double_t.
C99 uses double_t for the type in which unnamed
intermediate results of double calculations are stored.

Use glp_double_t for locals that are not arrays,
especially running totals.
Do the casts to ensure that desired calculations
are actually done in glp_double_t.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]