Calls to truncate are hanging.

[calewis]

On Hyades calls to truncate appear to hang until timeout. Adding c.truncate() to line 170 of ta_sparse hangs with backtrace
#0 0x0000003fcfcaccd0 in __nanosleep_nocancel () from /lib64/libc.so.6

1 0x0000003fcfce1e44 in usleep () from /lib64/libc.so.6
#2 0x00000000005f4175 in madness::myusleep (us=10000) at /hyades/home/valeev/calewis/software/upstream_tiledarray/external/src/madness/src/madness/world/worldtime.h:176
#3 0x00000000005f4417 in madness::MutexWaiter::yield (this=0x7fffffffbcc0, us=10000)

at /hyades/home/valeev/calewis/software/upstream_tiledarray/external/src/madness/src/madness/world/worldmutex.h:79

#4 0x00000000005f41e0 in madness::MutexWaiter::wait (this=0x7fffffffbcc0)

at /hyades/home/valeev/calewis/software/upstream_tiledarray/external/src/madness/src/madness/world/worldmutex.cc:63

#5 0x000000000056b2c9 in madness::ThreadPool::awaitTiledArray::detail::CounterProbe (probe=..., dowork=true)

at /hyades/home/valeev/calewis/software/upstream_tiledarray/external/src/madness/src/madness/world/worldthread.h:1084

#6 0x0000000000565243 in madness::World::awaitTiledArray::detail::CounterProbe (probe=..., dowork=true)

at /hyades/home/valeev/calewis/software/upstream_tiledarray/external/src/madness/src/madness/world/worldfwd.h:686

#7 0x000000000055b839 in TiledArray::SparsePolicy::truncate<TiledArray::Array<double, 2u, TiledArray::Tensor, TiledArray::SparsePolicy> > (array=...)

at /hyades/home/valeev/calewis/software/upstream_tiledarray/src/TiledArray/policies/sparse_policy.h:89

#8 0x00000000005570ba in TiledArray::Array<double, 2u, TiledArray::Tensor<double, Eigen::aligned_allocator >, TiledArray::SparsePolicy>::truncate (this=0x7fffffffc1c0)

at /hyades/home/valeev/calewis/software/upstream_tiledarray/src/TiledArray/array.h:487

#9 0x0000000000549362 in main (argc=4, argv=0x7fffffffc648) at /hyades/home/valeev/calewis/software/upstream_tiledarray/examples/dgemm/ta_sparse.cpp:170

Frame 6 is
683 /// Probe should be an object that when called returns the status.
684 template
685 static void inline await(const Probe& probe, bool dowork = true) {
686 ThreadPool::await(probe, dowork);
687 }

probe is
(const TiledArray::detail::CounterProbe &) @0x7fffffffbd80: {counter_ = @0x7fffffffbdc0, n_ = 8}

probe.counter_ is
(const madness::AtomicInt &) @0x7fffffffbdc0: {value = -16920}

After looking at madness::AtomicInt, and SparsePolicy::truncate, it seems possible that AtomicInt counter should have been set to 0 at some point?

[justusc]

For future reference please, please, PLEASE!, do not post back traces as you just did. This issue now references issues 1 to 9. If you must/need to post a back trace, at lease edit the frame numbers to omit the "#".

[calewis]

Can I just edit them out?

[justusc]

You can edit the text, but the reference will still be there. Unfortunately the damage is done.