The Second Code Improvement Milestone run was as follows: It had 50000 time steps and 400000 elements. It was run using 512 processors of the Dell Linux cluster at JPL and finished on Fri May 27, 2005 at 22:45:39. It was run by Charles Norton of JPL since Terry Tullis did not have access to this machine and Charles had done all the work to get the code running on the Dell cluster. The execution time for the job can be seen from the output file: prk.clocktime.400003 that can be found in the "out" directory that is contained in the directory in which this certification file resides on the website. The content of this file is copied here, surrounded by ##: ############################################################### Thu May 26 12:14:33 2005 1 7.215867116311745E-013 3.607933558155872E-013 Thu May 26 12:14:52 2005 50000 1.904683118783539E-002 9.626188434109848E-007 Fri May 27 22:45:39 2005 Fri May 27 22:45:39 2005 ################################################################ The execution time can be found by taking the difference between the last time in this file, which is reported just before program termination, and the first time in this file, which is reported just after the program begins. This difference is 34.5183 hours or 34h1m06s. This elapsed time has been shown from earlier tests to be essentially identical to the elapsed time one obtains by using the unix "time" command. As required for this Second Code Improvement Milestone G, this time is less than 5 times that for the Baseline Milestone run. For comparison with the time for this Second Code Improvement Milestone G, The Baseline Milestone E run took 7h53m8.23s of real time according to the "time" command, or 7.8897 hours. Five times this is 39.4486 hours or 39h26m55s, greater than the Milestone G run.