Hello Tom, Thanks for your reply. I put some comments on your email below:
On 30 août 2012, at 16:13, Tom Henderson wrote: > > On 08/29/2012 06:50 AM, behnaz.bostanip...@unil.ch wrote: >>> I'm not able to reproduce that error, so I would like to >>> see some examples of the diffed output. Would you mind >>> collecting all of the *.test output files for the tests >>> that failed and send them to me in a tarball, such as: >>> >>> cd tcl/tests >>> find . -name "*.test" -type f | xargs tar cvfj >>> ns-2-diffs.tbz2 >>> >>> and send me the ns-2-diffs.tbz2 file? >>> >>> Thanks, >>> Tom >> >> >> Here you are, I exactly execuuted your command, but not sure >> if it has all the outputs that we want (i.e., for tests: >> "test-all-tcpLinux", "test-all-tcpHighspeed", "test-all-red" >> and "test-all-cbq". >> > > There seem to be a few things going on here. > > for the test-all-cbq and test-all-red files, the data seems correct but > the formatting is slightly off: there are commas for periods in some of > the outputs. e.g. > > test-output-red/flows-combined.test >> ==> flows_combined.test <== >> TitleText: test_flows_combined >> Device: Postscript >> >> "flow 1 >> 84,8786 74,1902 >> 48,3181 46,8733 > > vs. test-output-red/flows-combined (good output) >> TitleText: test_flows_combined >> Device: Postscript >> >> "flow 1 >> 84.8786 74.1902 >> 48.3181 46.8733 > > > This may have something to do with the version of xgraph on the system. Yes, if you look at the validation output, whenever a test fails , it says: > > "couldn't execute "xgraph": no such file or directory" So, maybe I should do something about my graph, (e.g., reinstall it or …, do you have any suggestions?) > > for the tcpLinux and tcpHighspeed tests, there are lines missing (either > truncated, or interleaved in the test output) from the output when > compared to the reference output. I don't know whether this is again a > post-processing error or whether the simulation is not producing the > same data. > > The test-output-xcp data is different: > > 0.12186 4200000 > 0.12186 4200000 > 0.12186 4200000 > 0.12228 8 > 0.12228 8 > > vs > > 0.12186 4200000 > 0.12186 4200000 > 0.12186 4200000 > 0.12228 8190000 > 0.12228 8190000 > > In summary, I would be suspicious of the use of the tcpLinux, > tcpHighspeed, and xcp models on this platform. To debug this probably > requires to step through the code at the points where the output > diverge, using also a platform such as Linux that produces the reference > output. > > I don't have ns-2 running on Mountain Lion yet but I'll check whether > similar issues arise there. > > - Tom > > As I explained in my last email, I would like to do some simulations for IEEE 802.11 MAC layer and also use some routing protocols , I don't think that validation tests failures for TCP will not be a problem, my only concern is that these tests fail: /test-all-red ./test-all-cbq Do you think that will cause a problem for my simulations if I these models do not work properly on my machine? Thanks, Behnaz
