michal kvasnicka

120 Reputation

8 Badges

18 years, 66 days

MaplePrimes Activity


These are replies submitted by michal kvasnicka

@Jeremy

Are you using Intel MKL library as a separete Intel product? Or, are you using R? Or, any other SW using MKL library for numerical computation speed up? 

MKL_INTERFACE_LAYER=LP64,GNU

is sometime used in these cases, where is required compatibility of the third-party SW developed (compiled) with GNU development tools (in this case fortran GNU compiler) which is using MKL as an external solvers library.

Anyway, your problem is solved. You should be happy now :) (Joke) 

@Jeremy Teitelbaum

This is really strange behavior?! Your HW config looks like pretty standard.

But, the ~/maple2022/bin.X86_64_LINUX/libmkl_gf_lp64.so is not a part of installed libraries for Maple2022!!!

Try to fully uninstall (via /home/jet08013/maple2022/maple2022/uninstall/uninstall + rm -rf /home/jet08013/maple2022/maple2022/,  rm -rf ~/.maple, rm -rf ~/.maplesoft) and then again install Maple 2022.

And finally, put to the end of your ~/.bashrc file the following lines:

### Maple R2022.x:
PATH=/home/jet08013/maple2022/bin:$PATH
export PATH

open terminal by CTRL+ALT+T and type:

$ xmaple

Additional remark: The library libmkl_gf_lp64.so is a part of INTEL MKL library and is used by Anaconda Python, too. Did you make some very specific library path configuration on your system? But it is definitely not a part of Maple2022 installation, so the Maple2022 should not call this library!!!

 

with(LinearAlgebra);
a := <<0.1, 0.2> | <0.3, 0.4>>;
a;
                           [0.1  0.3]
                           [0.2  0.4]

ScalarMultiply(a, 0.1);
            [0.0100000000000000  0.0300000000000000]
            [0.0200000000000000  0.0400000000000000]

 

Please post your HW config info here ...

$ sudo apt install inxi
$ inxi -F

 

The exactly same problem on Maple 2022 (Linux)...!!??

On-line help for Maple 2022 is still not available.

Moreover, PDF documentation is available only for Maple 2021, too. Programming guide for Maple2021 is actually still in version for Maple 2020.

Is that normal???

I am really very interested about any future plans regarding multi-precision evaluation speed up. I think, fast multi-precision evaluation is really one of most important feature of any modern CAS. And Maple is still (as I said on this forum several times together with relevant links to benchmarks) very slow.

@tomleslie Thanks for help! The problem was some mismatch between two versions installed together (2021.2 + 2022.0) and between two corresponding  license files located at specific user defined directory.

@tomleslie

Maple 2022:

Physics:-Version();

The "Physics Updates" version in the MapleCloud is unable to

   determine. The version installed in this computer is 1181

   created 2022, March 16, 17:49 hours Pacific Time, found in

   the directory /home/kva/maple/toolbox/2021/Physics Updates/lib/

Physics:-Update(latest);
Error, %1 is not a command in the %2 package

Physics:-Version(latest);
Error, (in Physics:-Version) unable to determine the Physics Updates version, could you please report the problem to support@maplesoft.com

 

Maple 2021.2:

Physics:-Version();
 The "Physics Updates" version in the MapleCloud is 1183. The

    version installed in this computer is 1181 created 2022,

    March 16, 17:49 hours Pacific Time, found in the directory

    /home/kva/maple/toolbox/2021/Physics Updates/lib/

Physics:-Version(latest);
Error, (in Physics:-Version) this package is intended to work with Maple 2022; it can not be installed in the version you are using -- 2021
NULL;
Physics:-Update(latest);
Error, Update is not a command in the Physics package

Physics:-Update(latest);
Error, Update is not a command in the Physics package
NULL;

==================================================

Something is completely wrong ... :(

Still no progress with terribly slow multi-precision evaluation of function and linear algebra.

Question: Are there any plans for significant improvements?

I would like to see significant improvement of multi-precision evaluation speed (elementary + special functions and linear algebra, at least). See, for example, the comparison here and here It is a bit old, BUT still relevant (Maple 2021). Maple is permanently terribly slow even in quadruple precision case!!! 

P.S. A year ago, I asked for the same ... here

@ecterrab Yes, the problem is fixed now ... thanks!!!

@ecterrab So the problem really exist, users should install updates via Maple Cloud and ignore the absence of update announcements. 

@Thomas Richard Still no Programming Guide for recent Maple version??!!

@Thomas Richard Thanks for a positive replay :)

@acer  My question is about the specific case when the symbolic Sum experession range N is not a numerical value!

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