[deal.II] UMFPACK Proble

2023-09-25 Thread hussan zeb 
Hello everyone  I am currently  using  Deal II 9.5.1 when i try to run 
Step-57 with cmake . get the error  '' cmake
CMake Error at CMakeLists.txt:41 (message):
  

  Error! This tutorial requires a deal.II library that was configured with
  the following options:

  DEAL_II_WITH_UMFPACK = ON

  However, the deal.II library found at /home/hussan/deal was configured 
with
  these options:

  DEAL_II_WITH_UMFPACK = OFF

  This conflicts with the requirements.


-- Configuring incomplete, errors occurred!
See also "/home/hussan/deal/examples/step-57/CMakeFiles/CMakeOutput.log".
How can fix it 

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Re: [deal.II] I am experiencing varying execution speeds when running my code with different configurations of Ubuntu and Deal.II. Here are the observed speeds for the same code on different systems

2023-09-25 Thread ME20D503 NEWTON 
Thanks, Daniel I got the problem. There is no problem with the Versions. I
was using Debug mode to run the code in the terminal. I was using directly
"cmake run" to run my code which i had to use "make release" then "make
run'.

On Mon, Sep 25, 2023 at 6:16 PM Daniel Arndt  wrote:

> What is your code doing and how do you configure deal.II in all of these
> cases? Are you running in Release mode when comparing the run time of your
> program with different configurations?
> I would be very surprised to find that vastly different runtimes are a
> result of using different Ubuntu versions.
>
> Best,
> Daniel
>
> On Mon, Sep 25, 2023 at 1:29 AM ME20D503 NEWTON 
> wrote:
>
>>
>>
>> "I am experiencing varying execution speeds when running my code with
>> different configurations of Ubuntu and Deal.II. Here are the observed
>> speeds for the same code on different systems:
>>
>> 1. Ubuntu 22.04.2 LTS, Deal.II 9.5.1, 32GB RAM, Intel Xeon Silver 4208
>> CPU @ 2.10GHz x 16 cores: The code runs very fast on this system.
>>
>> 2. Ubuntu 22.04.1 LTS, Deal.II 9.5.1, 32GB RAM, Intel Xeon Silver 4208
>> CPU @ 2.10GHz x 16 cores: The code runs very slow on this system.
>>
>> 3. Ubuntu 20.04.3 LTS, Deal.II 9.4.2, 64GB RAM, Intel Xeon Silver 4208
>> CPU @ 2.10GHz x 40 cores: The code runs very slow on this system.
>>
>> 4. Ubuntu 22.04.3 LTS, Deal.II 9.5.1, 32GB RAM, Intel Xeon Silver 4208
>> CPU @ 2.10GHz x 16 cores: The code runs very slow on this system.
>>
>> I am seeking assistance to understand why there is such a significant
>> difference in code execution speed across these configurations."
>>
>> Thank you.
>>
>> regards
>>
>> --
>> The deal.II project is located at http://www.dealii.org/
>> For mailing list/forum options, see
>> https://groups.google.com/d/forum/dealii?hl=en
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>> 
>> .
>>
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> .
>

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Re: [deal.II] I am experiencing varying execution speeds when running my code with different configurations of Ubuntu and Deal.II. Here are the observed speeds for the same code on different systems

2023-09-25 Thread Daniel Arndt 
What is your code doing and how do you configure deal.II in all of these
cases? Are you running in Release mode when comparing the run time of your
program with different configurations?
I would be very surprised to find that vastly different runtimes are a
result of using different Ubuntu versions.

Best,
Daniel

On Mon, Sep 25, 2023 at 1:29 AM ME20D503 NEWTON 
wrote:

>
>
> "I am experiencing varying execution speeds when running my code with
> different configurations of Ubuntu and Deal.II. Here are the observed
> speeds for the same code on different systems:
>
> 1. Ubuntu 22.04.2 LTS, Deal.II 9.5.1, 32GB RAM, Intel Xeon Silver 4208 CPU
> @ 2.10GHz x 16 cores: The code runs very fast on this system.
>
> 2. Ubuntu 22.04.1 LTS, Deal.II 9.5.1, 32GB RAM, Intel Xeon Silver 4208 CPU
> @ 2.10GHz x 16 cores: The code runs very slow on this system.
>
> 3. Ubuntu 20.04.3 LTS, Deal.II 9.4.2, 64GB RAM, Intel Xeon Silver 4208 CPU
> @ 2.10GHz x 40 cores: The code runs very slow on this system.
>
> 4. Ubuntu 22.04.3 LTS, Deal.II 9.5.1, 32GB RAM, Intel Xeon Silver 4208 CPU
> @ 2.10GHz x 16 cores: The code runs very slow on this system.
>
> I am seeking assistance to understand why there is such a significant
> difference in code execution speed across these configurations."
>
> Thank you.
>
> regards
>
> --
> The deal.II project is located at http://www.dealii.org/
> For mailing list/forum options, see
> https://groups.google.com/d/forum/dealii?hl=en
> ---
> You received this message because you are subscribed to the Google Groups
> "deal.II User Group" group.
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> 
> .
>

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