Commit Graph

608 Commits

Author SHA1 Message Date
Michael Walker
8b4785f51b Fix async-dejafu tests 2016-05-01 21:56:17 +01:00
Michael Walker
50a5e0c63b Bump versions for {hunit,tasty}-dejafu-0.3 2016-04-28 23:22:12 +01:00
Michael Walker
a1ef5a8813 Merge branch 'test-concurrently' 2016-04-28 23:20:19 +01:00
Michael Walker
f4bcf51709 Add IsTest and IsOption instances to tasty-dejafu 2016-04-28 23:18:17 +01:00
Michael Walker
bdf289d84d Add Assertable and Testable instancs to hunit-dejafu 2016-04-28 23:16:51 +01:00
Michael Walker
710529df39 Bump versions for async-dejafu-0.1.2 2016-04-28 23:05:28 +01:00
Michael Walker
6757a2a857 Merge branch '0.2-compat' 2016-04-28 23:02:49 +01:00
Michael Walker
3334928acf Make tasty-dejafu work with 0.2 and 0.3 2016-04-28 17:09:46 +01:00
Michael Walker
636886c6fc Relax hunit-dejafu constraint to work with 0.2 and 0.3 2016-04-28 17:07:05 +01:00
Michael Walker
4e08f66302 Make async-dejafu work with 0.2 and 0.3 2016-04-28 17:05:41 +01:00
Michael Walker
6fef2be497 Bump version numbers for hackage release.
async-dejafu, hunit-dejafu, and tasty-dejafu only get a minor bump
because the API didn't change, only the dependencies. I'm not entirely
sure how to fit that properly into the PVP.
2016-04-03 14:40:51 +01:00
Michael Walker
93c9ff9aa8 Document deviations from standard functionality 2016-04-03 06:56:26 +01:00
Michael Walker
aefba4b7d3 Add an Ord constraint on ThreadId. 2016-04-03 06:45:22 +01:00
Michael Walker
4afca62119 Drop the lock and unlock MVar functions 2016-04-03 06:45:11 +01:00
Michael Walker
073f3c69fb Add a README and source repository for dpor 2016-04-03 06:07:37 +01:00
Michael Walker
539be21df5 Make tasty-dejafu work with new Trace type 2016-04-03 05:48:53 +01:00
Michael Walker
355a54cde6 Merge branch 'dpor-as-a-library' 2016-04-03 05:41:46 +01:00
Michael Walker
8ad7548faa Add a simpler DPOR function variant 2016-04-03 05:36:43 +01:00
Michael Walker
39658767df Improve dpor docs 2016-04-03 05:36:38 +01:00
Michael Walker
7d02708f92 Move Schedule module from DejaFu to DPOR. 2016-04-03 05:36:34 +01:00
Michael Walker
58643b9374 Reorganise Test.DPOR exports. 2016-04-03 05:36:28 +01:00
Michael Walker
5a599db0ca More consistent type variable naming 2016-04-03 05:36:23 +01:00
Michael Walker
c8139ace2b Tidy up Test.DPOR a bit 2016-04-03 05:36:16 +01:00
Michael Walker
7733c762c1 Merge the SCT modules 2016-04-03 05:34:01 +01:00
Michael Walker
552894d0bb Split DPOR packages into separate library 2016-04-03 05:34:01 +01:00
Michael Walker
05741e1cd8 hlint fixes 2016-04-03 05:34:01 +01:00
Michael Walker
20a18ae598 Drop the unknown CRState. 2016-04-03 05:34:01 +01:00
Michael Walker
29150d03a3 Drop dependency (3) and compute state in dporSched
This massively reduces the number of schedules tried for the litmus
tests, as expected, which is great! Interestingly, it does result in
more unique results being discovered for intelWP27 and intelWP28. This
is surprising DPOR is supposed to be complete. Perhaps this indicates
some unsoundness in the way I have integrated schedule bounding with
relaxed memory.
2016-04-03 05:31:06 +01:00
Michael Walker
6df702f818 Document dpor function. 2016-04-03 05:09:51 +01:00
Michael Walker
f89b4d81e8 Move the rest of the generic SCT stuff to DPOR 2016-04-03 05:07:34 +01:00
Michael Walker
db8df120b9 Generalise and move todo to DPOR module. 2016-04-03 05:04:29 +01:00
Michael Walker
f3457b23a0 Generalise and move grow to DPOR module.
For some reason, this causes significantly more schedules to be explored
in some of the litmus tests, in particular intelWP27 and intelWP28. I've
not dug too deeply, but it's probably something which should be
addresed.
2016-04-03 05:02:44 +01:00
Michael Walker
bc205f428e Generalise and move BacktrackStep and findBacktrack to DPOR module. 2016-04-03 04:08:25 +01:00
Michael Walker
6f3bcb4190 Generalise and move next to DPOR module. 2016-04-03 04:07:50 +01:00
Michael Walker
3e6a463014 Generalise and move BPOR type to DPOR module 2016-04-03 04:07:05 +01:00
Michael Walker
8ae1bbe14b Start moving generic DPOR to separate module 2016-04-03 04:06:14 +01:00
Michael Walker
802d823351 Avoid repeated O(n) list traversals in todo.
Store the prior tid, rather than compute every time.
2016-04-03 04:05:22 +01:00
Michael Walker
87ffa1aa52 Remove the Commit decision 2016-04-03 04:04:31 +01:00
Michael Walker
894a521c7c Pass the dependency function to findBacktrack and grow 2016-04-03 04:03:30 +01:00
Michael Walker
a551893ccf Fix implementation of PSO.
There should be one buffer for each (thread, ref) pair, not simply for
each ref. The former is too strict as it enforces a total order on the
commits to the same ref, yielding some bizarro memory model which is
both stricter and more relaxed than TSO.

This does add extra schedules when testing PSO. But that is to be
expected, as this makes PSO executions less deterministic. Unfortunately
this additional nondeterminism is required by the memory model.
2016-04-01 17:57:17 +01:00
Michael Walker
ee7580dfe7 Add an independency between writes and commits.
An unsynchronised write and a commit to the same CRef are independent if
the buffer is nonempty, because the commit will take from the front of
the buffer and the write will append to the end.

See [RMMVerification], lemma 5.25. It doesn't translate directly because
of the different models, but it's the same optimisation in spirit.
2016-04-01 17:57:15 +01:00
Michael Walker
5e166e9df5 Tidy up README and add bibliography 2016-04-01 17:57:13 +01:00
Michael Walker
65e4ddc6c8 Add an isCommit predicate and refactor synchronises. 2016-04-01 17:56:47 +01:00
Michael Walker
6c29594675 Add a function to compare the different memory models 2016-03-31 18:43:10 +01:00
Michael Walker
a1122405fe Less restrictive module exports in tests 2016-03-31 18:16:09 +01:00
Michael Walker
b98a03e22c Add more litmus tests 2016-03-31 18:14:11 +01:00
Michael Walker
4c89ecf1d8 Fix TSO/PSO write buffers being the wrong way around. 2016-03-31 17:07:03 +01:00
Michael Walker
3ee0b3dc75 Add the Search Party failing test example 2016-03-31 15:08:37 +01:00
Michael Walker
18cb1c86c9 Organise tests a little 2016-03-31 14:45:55 +01:00
Michael Walker
9e68038e2b Add AutoUpdate example to tests 2016-03-31 14:37:02 +01:00