News

Pathfinder 2011 Beta 2, Progress

February 25, 2011

The second development phase for Pathfinder 2011 is underway. We've already made good progress on waypoint scripting and we've also made some changes to enable parallel processing. Read More...

Pathfinder Case Study, Door Selection

February 16, 2011

Recent Pathfinder development has been, to a large extent, focused on our new Locally Quickest approach to controlling how an occupant moves out of its current room. One of the toughest challenges during this sort of simulator development is identifying what the simulator should do. When we find published research that can be compared to our answers, its exciting and very helpful.

 Read More...

PetraSim 5.1.1416

February 16, 2011

This release fixes a bug related production boundary conditions in TOUGHREACT and improves the input file reader in TMVOC. Read More...

Pathfinder 2011.0.0215 (Beta)

February 15, 2011
This release is an update to the Pathfinder 2011 Beta. This version includes changes that improve local door selection in SFPE mode. Now, occupants estimate queue sizes rather than sample density along proposed local door routes. This queue size estimate is now used in steering mode simulations as well.  Read More...

Pathfinder 2011.0.0210 (Beta)

February 10, 2011

Pathfinder 2011 is now available for beta testing. This version includes our new Locally Quickest path selection algorithm and an improved exit specification model. This version has not been run against our V&V test set and is not recommended for "real world" use.

 Read More...

PetraSim 5.1.1408

February 8, 2011

This release fixes a bug in PetraSim's Load Well Flow Rates feature and includes several other minor improvements. Read More...

PyroSim 2010.2.1407

February 8, 2011

This minor update to PyroSim fixes an installer error reported against the previous releaseRead More...

PetraSim 5.1.1402

February 2, 2011
This release fixes a TOUGHREACT input file format error. In models that contained more than one linear Kd zone, PetraSim was omitting the zone terminating asterisk – causing TOUGHREACT to halt prematurely. This update corrects the formatting error, allowing TOUGHREACT models with multiple linear Kd zones.  Read More...

Testing for First Beta Release

January 31, 2011
Pathfinder development last week was focused on internal testing and bug fixes. The first pass revealed some regressions that we needed to deal with prior to a public beta. On the bright side, the added flexibility of our new locally quickest technique made it possible to fix some known bugs from previous releases. This week we will run through our test set again and (if all goes well) post a public beta shortly after. Read More...

PetraSim 5.1.1320

January 21, 2011

This release changes Line Plots and fixes a problem in 3D Results that prevented vectors from appearing on slice planes. This release also includes fixes to the TOUGH2 input file writer. Read More...