Parallel GPU Processing
I am trying to run a simulation of 15 million particles using Amazon GPU instances. There are system with multiple GPU's which costs high and it came to my attention that DualSPH only uses one GPU at a time. If that's true then renting system with multiple GPU would be a waste of money. Does multiple GPU (4* 16 Gb) will be faster than (1*16 Gb)?
Debug Trace
| Notice |
Cannot assign an empty string to a string offset
#0 /var/www/forums-dual-sphysics-org/library/core/class.format.php(1203): gdn_ErrorHandler(2, 'Cannot assign a...', '/var/www/forums...', 1203, Array)
#1 /var/www/forums-dual-sphysics-org/library/core/class.format.php(958): Gdn_Format::formatMentionsCallback('')
#2 /var/www/forums-dual-sphysics-org/library/core/class.format.php(1292): Gdn_Format::tagContent('@swaraj1112 was...', 'Gdn_Format::for...')
#3 /var/www/forums-dual-sphysics-org/library/Vanilla/Formatting/Html/HtmlEnhancer.php(59): Gdn_Format::mentions('@swaraj1112 was...')
#4 /var/www/forums-dual-sphysics-org/library/Vanilla/Formatting/Formats/HtmlFormat.php(74): Vanilla\Formatting\Html\HtmlEnhancer->enhance('@swaraj1112 was...')
#5 /var/www/forums-dual-sphysics-org/library/Vanilla/Formatting/FormatService.php(34): Vanilla\Formatting\Formats\HtmlFormat->renderHtml('@swaraj1112 was...')
#6 /var/www/forums-dual-sphysics-org/library/core/class.format.php(769): Vanilla\Formatting\FormatService->renderHTML('@swaraj1112 was...', 'html')
#7 /var/www/forums-dual-sphysics-org/library/core/class.format.php(1479): Gdn_Format::html('@swaraj1112 was...')
#8 /var/www/forums-dual-sphysics-org/applications/vanilla/views/discussion/helper_functions.php(24): Gdn_Format::to('@swaraj1112 was...', 'Html')
#9 /var/www/forums-dual-sphysics-org/applications/vanilla/views/discussion/helper_functions.php(170): formatBody(Object(stdClass))
#10 /var/www/forums-dual-sphysics-org/applications/vanilla/views/discussion/comments.php(19): writeComment(Object(stdClass), Object(DiscussionController), Object(Gdn_Session), 4)
#11 /var/www/forums-dual-sphysics-org/applications/vanilla/views/discussion/index.php(53): include('/var/www/forums...')
#12 /var/www/forums-dual-sphysics-org/library/core/class.controller.php(778): include('/var/www/forums...')
#13 /var/www/forums-dual-sphysics-org/library/core/class.controller.php(1382): Gdn_Controller->fetchView('', false, false)
#14 /var/www/forums-dual-sphysics-org/library/core/class.pluggable.php(217): Gdn_Controller->xRender()
#15 /var/www/forums-dual-sphysics-org/applications/vanilla/controllers/class.discussioncontroller.php(310): Gdn_Pluggable->__call('render', Array)
#16 /var/www/forums-dual-sphysics-org/library/core/class.dispatcher.php(862): DiscussionController->index('1499', 'parallel-gpu-pr...', '')
#17 /var/www/forums-dual-sphysics-org/library/core/class.dispatcher.php(279): Gdn_Dispatcher->dispatchController(Object(Gdn_Request), Array)
#18 /var/www/forums-dual-sphysics-org/index.php(29): Gdn_Dispatcher->dispatch()
#19 {main} |
Comments
Renting multiple GPU solution seems a waste of money in my opinion, since DSPH can only use one.
When the code will be updated to multi-GPU, given that they are on the same machine (the code will not permit cloud GPU computing, only multi GPU on one local machine), 4 GPUs will be faster than than just one that is the whole point of multi GPU.
But in the mean time, it won't make a difference.
Nice day
From what the DSPH team told me, they are not a private club ! So if you are willing and competent enough, you can join them and improve the code... I suggest you get in touch with them. Multi-GPU code is definitely part of their plan http://dual.sphysics.org/index.php/features/
Sorry, if I revive a thread which is a bit "too old", but it just seemed relevant.