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Showing results 1 to 9 of 9 Search took 0.00 seconds. Search: Posts Made By: glypo

Forum: OpenFOAM January 1, 2015, 13:41

Replies: 18 Binary gives significant performance advantage (Mesh & Solve) Views: 8,789 Posted By glypo Bruno, This is now crystal clear, thank you... Bruno, This is now crystal clear, thank you for taking the time to explain. This kind of information is very interesting. It's incredible to see that the times in interpretation may vary the...

Forum: OpenFOAM January 1, 2015, 11:25

Replies: 18 Binary gives significant performance advantage (Mesh & Solve) Views: 8,789 Posted By glypo Very interesting tests. I'm glad that it explains... Very interesting tests. I'm glad that it explains why in my previously highlighted cases binary is significantly faster than ASCII. I tend to use OpenFOAM with bespoke utilities that require ASCII...

Forum: OpenFOAM June 26, 2014, 04:32

Replies: 18 Binary gives significant performance advantage (Mesh & Solve) Views: 8,789 Posted By glypo It's difficult to explain but it's not a rogue... It's difficult to explain but it's not a rogue case, others have experienced this, and judging by Olivier's reply this dates back to early OpenFOAM. The time I stated is correct, in that consistent...

Forum: OpenFOAM June 25, 2014, 10:08

Replies: 18 Binary gives significant performance advantage (Mesh & Solve) Views: 8,789 Posted By glypo In case anybody is still interested, following... In case anybody is still interested, following Olivier's comment I ran the 1.5 million cell simpleFoam case as mentioned in my first post (Case 2) with the following results: (to refresh memory,...

Forum: OpenFOAM June 23, 2014, 09:55

Replies: 18 Binary gives significant performance advantage (Mesh & Solve) Views: 8,789 Posted By glypo Olivier, I haven't looked at the different... Olivier, I haven't looked at the different between compressed and uncompressed. Thank you for the suggestion, I'll run some cases now to compare to see if the same is true with OF 2.3. Kalle, I...

Forum: OpenFOAM June 18, 2014, 12:18

Replies: 18 Binary gives significant performance advantage (Mesh & Solve) Views: 8,789 Posted By glypo The answer to those questions are in my reply to... The answer to those questions are in my reply to Bruno. I ran this across a number of desktops (Ubuntu) and on cluster (CentOS). Hardware is relatively powerful, desktops are 6-core (12 thread) Intel...

Forum: OpenFOAM June 18, 2014, 11:15

Replies: 18 Binary gives significant performance advantage (Mesh & Solve) Views: 8,789 Posted By glypo It is to be expected? In some cases, three hours... It is to be expected? In some cases, three hours extra to write a handful of files in binary rather than ASCII?? I'm sorry, but I don't believe it is! I'd expect a read-write overhead of ASCII to be...

Forum: OpenFOAM June 8, 2014, 12:35

Replies: 18 Binary gives significant performance advantage (Mesh & Solve) Views: 8,789 Posted By glypo Bruno, In response to your questions, this... Bruno, In response to your questions, this was performed with OpenFOAM 2.3 on both CentOS 6.3 and Ubuntu 12.04 using the OpenFOAM repositories on both. Of the three cases there is a mixture of...

Forum: OpenFOAM June 8, 2014, 08:17

Replies: 18 Binary gives significant performance advantage (Mesh & Solve) Views: 8,789 Posted By glypo Binary gives significant performance advantage (Mesh & Solve) I've run a handful of different external aero cases. I am very surprised to see meshing and solution running significantly faster when output is set at binary compared to ASCII. The only difference...

Showing results 1 to 9 of 9

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