Warning: UPDATE command denied to user 'gillesgo'@'10.23.20.18' for table 'drupal_cache' query: UPDATE drupal_cache SET data = 'a:228:{s:13:\"theme_default\";s:4:\"wabi\";s:13:\"filter_html_1\";i:1;s:24:\"statistics_day_timestamp\";i:1576312363;s:9:\"site_name\";s:13:\"Gilles\'s blog\";s:9:\"site_mail\";s:27:\"blog@gillesgouaillardet.com\";s:11:\"site_slogan\";s:0:\"\";s:12:\"site_mission\";s:0:\"\";s:11:\"site_footer\";s:0:\"\";s:9:\"anonymous\";s:9:\"Anonymous\";s:14:\"site_frontpage\";s:4:\"node\";s:9:\"clean_url\";s:1:\"0\";s:8:\"site_403\";s:0:\"\";s:8:\"site_404\";s:0:\"\";s:11:\"error_level\";s:1:\"0\";s:14:\"watchdog_clear\";s:6:\"604800\";s:5:\"cache\";s:1:\"0\";s:19:\"f in /home/gillesgo/www/blog/includes/database.mysql.inc on line 135

Warning: Cannot modify header information - headers already sent by (output started at /home/gillesgo/www/blog/includes/database.mysql.inc:135) in /home/gillesgo/www/blog/includes/bootstrap.inc on line 729

Warning: Cannot modify header information - headers already sent by (output started at /home/gillesgo/www/blog/includes/database.mysql.inc:135) in /home/gillesgo/www/blog/includes/bootstrap.inc on line 730

Warning: Cannot modify header information - headers already sent by (output started at /home/gillesgo/www/blog/includes/database.mysql.inc:135) in /home/gillesgo/www/blog/includes/bootstrap.inc on line 731

Warning: Cannot modify header information - headers already sent by (output started at /home/gillesgo/www/blog/includes/database.mysql.inc:135) in /home/gillesgo/www/blog/includes/bootstrap.inc on line 732
Teraflops | Gilles's blog

Teraflops

The last top500 list was published during ISC 2006 held this year in Dresden, Germany.
I was sad not to find in it a great system I was lucky to install.
With "only" 1.916 TFlops, it was not one of the 500 fastest system in the world Sad
The 500th system had a measured performance of 2.026 TFlops ... I was kind of shocked to see that such a system ( a bunch of nodes connected via a gigE network ) had an efficiency of 35.19 %, too bad for me to call this HPC !
"my" system, with a peak performance of 2.288 TFlops has an efficicency of 83.74%. If you consider only this number, it would be
ranked at position 41 ! And if you compare only dual core opteron systems, it is the first in its category Smiling
Of course, linpack is not the ultimate goal in HPC, that being said, I do not believe bunch of nodes should be called HPC neither.