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  1. Old Comment

    Hanging my volunteer gloves and moving to a new phase of my life

    Hi Bruno,
    I wish to express my huge respect for you due to your unmatched, selfless contribution and high thinking. My wishes for your better health.

    Regards
    Nipin
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    Posted June 18, 2021 at 02:59 by nipinl nipinl is offline
  2. Old Comment

    Hanging my volunteer gloves and moving to a new phase of my life

    Hey Bruno!
    I confesse I was about to send you a private message asking your help, but then somehow I came to this post and realized you retired because of health reasons.

    Well,
    I just want to thank you very very much for all of your efforts and the herculean task that is to reply on this forum as an hobby expecting "nothing" in reward.

    I had the privilege of meeting you in the 3rd OpenFOAM Iberian Meeting at Porto, and there I could assess what a great person you are.

    Regarding your health issues, I really hope that you can recover from your burning-out situation. I personally suffer, from time to time, nervous issues as well. May be that's a side effect of OpenFOAM users

    Anyway,
    I really support your decision of a full disconnection from the forum, so you can dedicate more time to your personal life. I really hope you get well soon.

    Grande abraço,
    Jorge Gadelho.
    permalink
    Posted February 2, 2021 at 07:51 by JGadelho JGadelho is offline
  3. Old Comment

    Hanging my volunteer gloves and moving to a new phase of my life

    Hi Bruno,

    Thank you for being such a great person, which is clear not only on the immense contributions to the community, but also by your concern to justify the absence of news.

    As many Foamers I first met you in CFD Online, but I had the privilege to work with you in many occasions. Several "adventures" where I witnessed that in person you don't change a bit, you have exactly the same posture everyone knows from CFD Online.

    Currently you have to focus in you, to get better asap. Feel free to ask if I can be useful in anything.


    Even if you don't put any other post in CFD Online, based on your legacy, you'll be the, and our, champion for a long time.

    We'll miss you, but I'm sure that everyone prefers to have a healthy Wyldckat than another post from you.


    Please do your best to enjoy life, be happy and stay safe



    Your very honored friend,


    Miguel
    permalink
    Posted August 19, 2020 at 13:56 by mnobrega mnobrega is offline
  4. Old Comment
    Tobi's Avatar

    Hanging my volunteer gloves and moving to a new phase of my life

    Hey Bruno, thank you very much for your open-minded way to talk about your private life. I hope that we will meet somewhen in person again as I really liked your presents in the OpenFOAM Day in London.

    I am glad that you decided to make a step back from the community support as you did a lot of support. We, the community, were sometimes talking about your name »wyldckat« and we assuming that each letter stands for one person behind the accronym as there were so many posts everywhere from your side on cfd-online.

    You posts were always an unjustified enrichment for everybody (not only the thread-starter). You put »always« lot of time and effort in your reply's and if your reply was not good enough (for you) you extended it a few ours ago with new tests and outcomes.

    Take care of yourself Bruno. You know my personal behavior too and I have the feeling to go more-or-less your way with additional private circumstance load. I also do have the feeling to not have enough time to do that or investigate into that. Nevertheless, I never had such a intensive community presence as you have/had.


    Be aware that your posts and your ideas/thoughts were helpful for a lot of people who are reading through the forum, and they will be helpful for everybody in future.

    You set the basic and fundamentals of many questions in this forum. At least, I have the feeling regarding this and we, the community, will give you value to everything your made an also to your personality.

    Again, take care of yourself and your health.
    May we meet somewhere someone again. I hope so.

    Tobi
    permalink
    Posted August 19, 2020 at 06:58 by Tobi Tobi is offline
  5. Old Comment

    Hanging my volunteer gloves and moving to a new phase of my life

    Hi,

    I still remember you were the first one to reply when I posted first time in the form. It was a stupid question but you still answered it. That bought enthusism in me to look for more. Now due to OpenFOAM I work in my Uni and can afford to fund my studies. Like wise I beleve that you have helped many directly or indirectly just by one post to change their career.

    In one word THANKYOU
    permalink
    Posted August 19, 2020 at 05:05 by neko2650 neko2650 is offline
  6. Old Comment

    Advanced tips for working with the OpenFOAM shell environment

    I want to open a terminal without sourcing OpenFoam's bashrc. What should I do?
    I have tried bash --norc , $ bash --noprofile --norc and env -i bash --rcfile /etc/profile, but non of them worked
    permalink
    Posted January 31, 2019 at 17:02 by Samsam2 Samsam2 is offline
  7. Old Comment

    A few thoughts about today's CPU era...

    As I was revising what I wrote, I began rethinking what I read at https://en.wikipedia.org/wiki/Eighth...les#Comparison - for the PS4 memory specs, and I quote:
    Quote:
    • Original PS4:
      • 8 GB GDDR5 RAM @ 1375 MHz (5500 MHz effective) (176.0 GB/s)
      • 4.5–5.5 GB (flexible memory) available for games
    • PS4 Pro
      • 8 GB GDDR5 RAM @ 1700 MHz (6800 MHz effective) (217.6 GB/s)
    Which means that GDDR5 is being used as a 4 channel group... at least here...

    But then I look at the wikipedia page for GDDR5: https://en.wikipedia.org/wiki/GDDR5_SDRAM - and they mention:
    Quote:
    Hynix 40 nm class "2 Gb" (2 × 1024ł bit) GDDR5 was released in 2010. It operates at 7 GHz effective clock-speed and processes up to 28 GB/s. "2 Gb" GDDR5 memory chips will enable graphics cards with 2 GB or more of onboard memory with 224 GB/s or higher peak bandwidth.
    But after reading the initial introduction section, it looks like what the clocks are in fact the addition of 3 clocks:
    • 1x Command Clock CK at 1.25 or 1.375 GHz
    • 2x Write Clock WCK at 2.5 ot 2.75 GHz (each)
    So becoming:
    • 2.5×2+1.25 = 6.25 GHz
    • 1.375+2×2.75 = 6.875 GHz
    OK... so... it's in fact 3 channels? But the specs on the PS4 implies 4 channels...





    Anyway, if my understanding of this is correct, then the 6-8 GHz specs that the GPU cards keep advertising aren't all that great, when compared to the 8x2.6GHz that the EPYC CPUs have nowadays...


    But still, having RAM embedded into the motherboard or on a stacked die would allegedly reduce latency by quite a bit, as in graphics cards...
    permalink
    Posted January 6, 2019 at 16:01 by wyldckat wyldckat is offline
  8. Old Comment
    permalink
    Posted August 24, 2018 at 17:08 by wyldckat wyldckat is offline
  9. Old Comment

    Rants removed from a recent post of mine about OpenFOAM vs OpenFOAM+ in 2016-02-14

    Your first post on OpenFOAM was: post #113 in January 14th, 2009

    Today 21 April 2018 you have a reputation power: 113!
    permalink
    Posted April 20, 2018 at 19:04 by anon_q anon_q is offline
  10. Old Comment

    Notes about running OpenFOAM in parallel

    Since I've already hit the 10000 characters limit on the main blog post:
    permalink
    Posted April 8, 2018 at 14:45 by wyldckat wyldckat is offline
  11. Old Comment

    Linking dynamic libraries and initializing variables

    I haven't confirmed this yet, but several months ago, this might have been somewhat fixed in OpenFOAM 3... namely in these commits:
    permalink
    Posted June 25, 2017 at 11:34 by wyldckat wyldckat is offline
  12. Old Comment

    Notes about running OpenFOAM in parallel

    Yet another solution for the error message:
    Code:
      opal_shmem_base_select failed
      --> Returned value -1 instead of OPAL_SUCCESS
    Is given in the following posts:
    permalink
    Posted June 4, 2017 at 20:14 by wyldckat wyldckat is offline
  13. Old Comment

    Read this before emailing/PM me

    great job bruno sir

    you are one of a kind. a walking talking and hadcore debugging LEGEND.....what would this forum do without you???
    permalink
    Posted May 26, 2017 at 19:00 by saddy saddy is offline
  14. Old Comment
    alia's Avatar

    Notes about running OpenFOAM in parallel

    Quote:
    Originally Posted by wyldckat View Comment
    Hi Ali,


    For fsiFoam, you need to contact the current author, Željko Tuković. Because as far as I know, running in parallel is not yet fully implemented, not even in the latest source package for foam-extend 4.0, that is provided here: https://openfoamwiki.net/index.php/E...re_interaction

    If you have figured out how to run those solvers in parallel, feel free to edit that wiki page and add a section for it.

    As for running in parallel in general, feel free to start the wiki page https://openfoamwiki.net/index.php/H...un_In_Parallel

    Best regards,
    Bruno
    Thank you Bruno!
    permalink
    Posted April 10, 2017 at 06:55 by alia alia is offline
  15. Old Comment

    Notes about running OpenFOAM in parallel

    Hi Ali,

    Quote:
    Originally Posted by alia View Comment
    I'm particularly interested in application of parallel computation in FsiFoam.
    For fsiFoam, you need to contact the current author, Željko Tuković. Because as far as I know, running in parallel is not yet fully implemented, not even in the latest source package for foam-extend 4.0, that is provided here: https://openfoamwiki.net/index.php/E...re_interaction

    If you have figured out how to run those solvers in parallel, feel free to edit that wiki page and add a section for it.

    As for running in parallel in general, feel free to start the wiki page https://openfoamwiki.net/index.php/H...un_In_Parallel

    Best regards,
    Bruno
    permalink
    Posted April 8, 2017 at 07:39 by wyldckat wyldckat is offline
  16. Old Comment
    alia's Avatar

    Notes about running OpenFOAM in parallel

    Hi Bruno! I am working with OpenFOAM for three years somehow a newcomer . I would like to participate in documentation of parallelization in OpenFOAM. I'm particularly interested in application of parallel computation in FsiFoam.
    Regards,
    Ali
    permalink
    Posted April 7, 2017 at 12:13 by alia alia is offline
  17. Old Comment

    Notes about running OpenFOAM in parallel

    Another one, as a reminder for selecting any other MPI versions based on module load: https://www.cfd-online.com/Forums/op...fic-linux.html
    permalink
    Posted December 22, 2016 at 10:15 by wyldckat wyldckat is offline
  18. Old Comment
    permalink
    Posted May 1, 2016 at 19:11 by wyldckat wyldckat is offline
  19. Old Comment

    Blog about my forks at github for the repositories OpenFOAM and ThirdParty

    Instead of editing the blog post and tampering with the historic dates mechanism, I've decided to write a comment instead, on the status of this line of thinking.
    Essentially, I started dealing with so many repositories and trying to help so many people on the forum, that writing on blog format sort-of became obsolete.

    Nonetheless, I still do have a blog of sorts and is maintained here: http://wyldckat.github.io - although it currently points to the wiki for the same project, since it's easier for me to edit locally and git commit+push: https://github.com/wyldckat/wyldckat.github.io/wiki

    Either way, I haven't been doing as many forks and have been contributing more directly to projects, therefore any breadcrumbs on what I do are mostly kept on their respective bug/issue trackers, repositories and project pages.
    permalink
    Posted January 9, 2016 at 09:41 by wyldckat wyldckat is offline
  20. Old Comment

    Notes about running OpenFOAM in parallel

    And another link: http://www.cfd-online.com/Forums/ope...m-2-3-1-a.html - neat solutions for SSH issues with Open-MPI newer than 1.6.5
    permalink
    Posted January 6, 2016 at 17:30 by wyldckat wyldckat is offline

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