{"id":534,"date":"2009-01-29T12:58:45","date_gmt":"2009-01-29T16:58:45","guid":{"rendered":"http:\/\/mat.tepper.cmu.edu\/blog\/?p=534"},"modified":"2009-01-29T12:58:45","modified_gmt":"2009-01-29T16:58:45","slug":"gurobi-versus-cplex-benchmarks","status":"publish","type":"post","link":"https:\/\/mat.tepper.cmu.edu\/blog\/index.php\/2009\/01\/29\/gurobi-versus-cplex-benchmarks\/","title":{"rendered":"Gurobi versus CPLEX benchmarks"},"content":{"rendered":"

Hans Mittelmann<\/a> has released some benchmark results<\/a> comparing CPLEX 11.2 with the first version of Gurobi<\/a>‘s code (1.02) in both sequential and parallel (4 processor) mode.\u00a0 Mosek’s sequential code is also included in the test.\u00a0 Let me highlight some of the lines:<\/p>\n

\n
=================================================================\ns problem     CPLEX1    GUROBI1     MOSEK1     CPLEX4    GUROBI4\n-----------------------------------------------------------------\n    air04          9         18         49          7         13\n   mzzv11         89        116        434         80        116\n      lrn         42        104          f         36        996\nns1671066       1828          1       2474         26          1\nns1688347       1531        315          f        716        258\nns1692855       1674        322          f        688        234\n     acc5         25        247       4621         30         33<\/pre>\n<\/blockquote>\n
These are not chosen to be typical, so be sure to look at the full list of benchmark results.\u00a0 Concentrating on the first two columns, Gurobi’s code seems to be holding its own against CPLEX, and sometimes has a surprising result.\u00a0 The ns1671066 result certainly looks like Gurobi is doing something interesting relative to CPLEX.<\/p>\n
It is also striking how often the speedup is more than a factor of 4.\u00a0 That same ns1671066 instances that CPLEX had such trouble on sequentially certainly looks much more solvable with 4 threads.\u00a0 But sometimes there is a significant slowdown (see Gurobi on lrn).\u00a0 Perhaps someone more skilled in this area can explain how we should interpret these benchmarks.<\/p>\n
The official release for Gurobi is still two months away:\u00a0 it will be interesting to see how the released version works.<\/p>\n","protected":false},"excerpt":{"rendered":"
Hans Mittelmann has released some benchmark results comparing CPLEX 11.2 with the first version of Gurobi‘s code (1.02) in both sequential and parallel (4 processor) mode.\u00a0 Mosek’s sequential code is also included in the test.\u00a0 Let me highlight some of the lines: ================================================================= s problem CPLEX1 GUROBI1 MOSEK1 CPLEX4 GUROBI4 —————————————————————– air04 9 18 49 … Continue reading “Gurobi versus CPLEX benchmarks”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,12],"tags":[],"class_list":["post-534","post","type-post","status-publish","format-standard","hentry","category-companies","category-computing"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/mat.tepper.cmu.edu\/blog\/index.php\/wp-json\/wp\/v2\/posts\/534","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mat.tepper.cmu.edu\/blog\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mat.tepper.cmu.edu\/blog\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mat.tepper.cmu.edu\/blog\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mat.tepper.cmu.edu\/blog\/index.php\/wp-json\/wp\/v2\/comments?post=534"}],"version-history":[{"count":0,"href":"https:\/\/mat.tepper.cmu.edu\/blog\/index.php\/wp-json\/wp\/v2\/posts\/534\/revisions"}],"wp:attachment":[{"href":"https:\/\/mat.tepper.cmu.edu\/blog\/index.php\/wp-json\/wp\/v2\/media?parent=534"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mat.tepper.cmu.edu\/blog\/index.php\/wp-json\/wp\/v2\/categories?post=534"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mat.tepper.cmu.edu\/blog\/index.php\/wp-json\/wp\/v2\/tags?post=534"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}