Code with errors does not stop when run in parallel in 0.4.0 #13730
Closed
315234 opened this Issue on Oct 22, 2015 · 1 comment
Projects
None yet
Labels
parallel
regression
Milestone
No milestone
Assignees
No one assigned
2 participants
@315234
@JeffBezanson
Notifications

You’re not receiving notifications from this thread.
@315234
315234 commented on Oct 22, 2015

$ cat bug.jl

t = 0.0
@sync @parallel for i=1:10
    t.nonexistent # should error out, but dies silently
end
pmap(x->t.nonexistent, [0,1,2]) # also no error
pmap(x->t.nonexistent, [0,1,2]; err_stop=true) # also no error
#t.nonexistent # error if uncommented

$ julia --version
julia version 0.3.10


$ julia bug.jl
exception on 1: ERROR: type Float64 has no field nonexistent
 in anonymous at no file:3
 in anonymous at multi.jl:1279
 in run_work_thunk at multi.jl:621
 in run_work_thunk at multi.jl:630
 in anonymous at task.jl:6
exception on 1: ERROR: type Float64 has no field nonexistent
 in anonymous at /home/tbm/phd/IntegrateScalars_bugfind/bug.jl:5
 in anonymous at multi.jl:660
 in run_work_thunk at multi.jl:621
 in remotecall_fetch at multi.jl:694
 in remotecall_fetch at multi.jl:709
 in anonymous at task.jl:1361
exception on 1: ERROR: type Float64 has no field nonexistent
 in anonymous at /home/tbm/phd/IntegrateScalars_bugfind/bug.jl:6
 in anonymous at multi.jl:660
 in run_work_thunk at multi.jl:621
 in remotecall_fetch at multi.jl:694
 in remotecall_fetch at multi.jl:709
 in anonymous at task.jl:1361


$ ~/opt/julia-0.4/bin/julia --version
julia version 0.4.0

$ ~/opt/julia-0.4/bin/julia bug.jl

This last command shows no output. Uncommenting the last line in bug.jl results in the following output:

ERROR: LoadError: type Float64 has no field nonexistent
 in include at ./boot.jl:261
 in include_from_node1 at ./loading.jl:304
 in process_options at ./client.jl:308
 in _start at ./client.jl:411
while loading /home/tbm/phd/IntegrateScalars_bugfind/julia_bug.jl, in expression starting on line 7

@315234 315234 changed the title from Code with syntax errors does not stop when run in parallel in 0.4.0 to Code with errors does not stop when run in parallel in 0.4.0 on Oct 22, 2015
@JeffBezanson JeffBezanson added parallel regression labels on Oct 22, 2015
@JeffBezanson
The Julia Language member
JeffBezanson commented on Oct 22, 2015

It looks like now fetch propagates exceptions, but wait doesn't. I think they both should. cc @amitmurthy
@amitmurthy amitmurthy referenced this issue on Oct 23, 2015
Merged
propagate errors on wait(::RemoteRef) and remotecall_wait #13744
@JeffBezanson JeffBezanson closed this in #13744 on Oct 23, 2015
@tkelman tkelman referenced this issue on Oct 31, 2015
Merged
[release-0.4, RFC] backports for 0.4.1 #13834