Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Error when using pmap and plan_fft! #243

Open
Lightup1 opened this issue May 21, 2022 · 7 comments
Open

Error when using pmap and plan_fft! #243

Lightup1 opened this issue May 21, 2022 · 7 comments

Comments

@Lightup1
Copy link

Lightup1 commented May 21, 2022 •
edited

Version info:

julia> versioninfo()
Julia Version 1.7.2
Commit bf53498635 (2022-02-06 15:21 UTC)
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: Intel(R) Core(TM) i5-10400 CPU @ 2.90GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-12.0.1 (ORCJIT, skylake)
Environment:
  JULIA_HOME = C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\bin
  JULIA_NUM_THREADS = 3
  JULIA_PKG_SERVER = https://mirrors.tuna.tsinghua.edu.cn/julia
julia> using FFTW

julia> FFTW.get_provider()
"fftw"

Code to reproduce:

using Distributed
using ClusterManagers
addprocs(2)
@everywhere begin
    using FFTW
    FFTW.set_num_threads(1)
    ##
    N=round(Int, 2048)
    ##
    Tpx=plan_fft(rand(ComplexF64,N))
    ##
    function mapfunc(Tpx)
        test2->Tpx* test2
    end
    f=mapfunc(Tpx)
end
##
test2=[rand(ComplexF64,N), rand(ComplexF64,N)]
F=pmap(f,test2)
print(F)
##

Error message:

julia debug.jl
      From worker 2:
      From worker 2:    Please submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.
      From worker 2:    Exception: EXCEPTION_ACCESS_VIOLATION at 0x54496564 -- .text at C:\Users\dell\.julia\artifacts\b7dd1809d0626eac3bf6f97ba8ccfbb6cc63c509\bin\libfftw3-3.dll (unknown line)
      From worker 2:    in expression starting at none:0
      From worker 2:    .text at C:\Users\dell\.julia\artifacts\b7dd1809d0626eac3bf6f97ba8ccfbb6cc63c509\bin\libfftw3-3.dll (unknown line)
      From worker 2:    unsafe_execute! at C:\Users\dell\.julia\packages\FFTW\SDUwi\src\fft.jl:466 [inlined]
      From worker 2:    * at C:\Users\dell\.julia\packages\FFTW\SDUwi\src\fft.jl:721 [inlined]
      From worker 2:    #3 at F:\Simulation\Trap simulation\2layers trap\BEM2Layers\ElectronTrapPost\DC_1D\th2\debug.jl:13
      From worker 2:    unknown function (ip: 0000000052d93c66)
      From worker 2:    jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]
      From worker 2:    do_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\builtins.c:713
      From worker 2:    #106 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:278
      From worker 2:    run_work_thunk at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:63
      From worker 2:    macro expansion at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:278 [inlined]
      From worker 2:    #105 at .\task.jl:423
      From worker 2:    unknown function (ip: 0000000052d858a3)
      From worker 2:    jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]
      From worker 2:    start_task at /cygdrive/c/buildbot/worker/package_win64/build/src\task.c:877
      From worker 2:    Allocations: 7967560 (Pool: 7964384; Big: 3176); GC: 10
      From worker 3:
      From worker 3:    Please submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.
      From worker 3:    Exception: EXCEPTION_ACCESS_VIOLATION at 0x544e6564 -- .text at C:\Users\dell\.julia\artifacts\b7dd1809d0626eac3bf6f97ba8ccfbb6cc63c509\bin\libfftw3-3.dll (unknown line)
      From worker 3:    in expression starting at none:0
      From worker 3:    .text at C:\Users\dell\.julia\artifacts\b7dd1809d0626eac3bf6f97ba8ccfbb6cc63c509\bin\libfftw3-3.dll (unknown line)
      From worker 3:    unsafe_execute! at C:\Users\dell\.julia\packages\FFTW\SDUwi\src\fft.jl:466 [inlined]
      From worker 3:    * at C:\Users\dell\.julia\packages\FFTW\SDUwi\src\fft.jl:721 [inlined]
      From worker 3:    #3 at F:\Simulation\Trap simulation\2layers trap\BEM2Layers\ElectronTrapPost\DC_1D\th2\debug.jl:13
      From worker 3:    unknown function (ip: 0000000052df4566)
      From worker 3:    jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]
      From worker 3:    do_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\builtins.c:713
      From worker 3:    #106 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:278
      From worker 3:    run_work_thunk at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:63
      From worker 3:    macro expansion at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:278 [inlined]
      From worker 3:    #105 at .\task.jl:423
      From worker 3:    unknown function (ip: 0000000052de61a3)
      From worker 3:    jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]
      From worker 3:    start_task at /cygdrive/c/buildbot/worker/package_win64/build/src\task.c:877
      From worker 3:    Allocations: 7968181 (Pool: 7965007; Big: 3174); GC: 10
Worker 2 terminated.
ERROR: LoadError: Worker 3 terminated.ProcessExitedException
(2)
Stacktrace:
  [1] (::Base.var"#892#894")(x::Task)
    @ Base .\asyncmap.jl:177
  [2] foreach(f::Base.var"#892#894", itr::Vector{Any})
    @ Base .\abstractarray.jl:2694
  [3] maptwice(wrapped_f::Function, chnl::Channel{Any}, worker_tasks::Vector{Any}, c::Vector{Vector{ComplexF64}})
    @ Base .\asyncmap.jl:177
  [4] wrap_n_exec_twice
    @ .\asyncmap.jl:153 [inlined]
  [5] #async_usemap#877
    @ .\asyncmap.jl:103 [inlined]
  [6] #asyncmap#876
    @ .\asyncmap.jl:81 [inlined]
  [7] pmap(f::Function, p::WorkerPool, c::Vector{Vector{ComplexF64}}; distributed::Bool, batch_size::Int64, on_error::Nothing, retry_delays::Vector{Any}, retry_check::Nothing)
    @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\pmap.jl:126
  [8] pmap(f::Function, p::WorkerPool, c::Vector{Vector{ComplexF64}})
    @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\pmap.jl:101
  [9] pmap(f::Function, c::Vector{Vector{ComplexF64}}; kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\pmap.jl:156
 [10] pmap(f::Function, c::Vector{Vector{ComplexF64}})
    @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\pmap.jl:156
 [11] top-level scope
    @ F:\Simulation\Trap simulation\2layers trap\BEM2Layers\ElectronTrapPost\DC_1D\th2\debug.jl:19
in expression starting at F:\Simulation\Trap simulation\2layers trap\BEM2Layers\ElectronTrapPost\DC_1D\th2\debug.jl:19
Unhandled Task ERROR: EOFError: read end of file
Stacktrace:
 [1] (::Base.var"#wait_locked#645")(s::Sockets.TCPSocket, buf::IOBuffer, nb::Int64)
   @ Base .\stream.jl:892
 [2] unsafe_read(s::Sockets.TCPSocket, p::Ptr{UInt8}, nb::UInt64)
   @ Base .\stream.jl:900
 [3] unsafe_read
   @ .\io.jl:724 [inlined]
 [4] unsafe_read(s::Sockets.TCPSocket, p::Base.RefValue{NTuple{4, Int64}}, n::Int64)
   @ Base .\io.jl:723
 [5] read!
   @ .\io.jl:725 [inlined]
 [6] deserialize_hdr_raw
   @ C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\messages.jl:167 [inlined]
 [7] message_handler_loop(r_stream::Sockets.TCPSocket, w_stream::Sockets.TCPSocket, incoming::Bool)
   @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:165
 [8] process_tcp_streams(r_stream::Sockets.TCPSocket, w_stream::Sockets.TCPSocket, incoming::Bool)
   @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:126
 [9] (::Distributed.var"#99#100"{Sockets.TCPSocket, Sockets.TCPSocket, Bool})()
   @ Distributed .\task.jl:423
Unhandled Task ERROR: EOFError: read end of file
Stacktrace:
 [1] (::Base.var"#wait_locked#645")(s::Sockets.TCPSocket, buf::IOBuffer, nb::Int64)
   @ Base .\stream.jl:892
 [2] unsafe_read(s::Sockets.TCPSocket, p::Ptr{UInt8}, nb::UInt64)
   @ Base .\stream.jl:900
 [3] unsafe_read
   @ .\io.jl:724 [inlined]
 [4] unsafe_read(s::Sockets.TCPSocket, p::Base.RefValue{NTuple{4, Int64}}, n::Int64)
   @ Base .\io.jl:723
 [5] read!
   @ .\io.jl:725 [inlined]
 [6] deserialize_hdr_raw
   @ C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\messages.jl:167 [inlined]
 [7] message_handler_loop(r_stream::Sockets.TCPSocket, w_stream::Sockets.TCPSocket, incoming::Bool)
   @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:165
 [8] process_tcp_streams(r_stream::Sockets.TCPSocket, w_stream::Sockets.TCPSocket, incoming::Bool)
   @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:126
 [9] (::Distributed.var"#99#100"{Sockets.TCPSocket, Sockets.TCPSocket, Bool})()
   @ Distributed .\task.jl:423
@Lightup1 Lightup1 changed the title Segfault when using Distributed Error when using Distributed and plan_fft! May 21, 2022
@Lightup1 Lightup1 changed the title Error when using Distributed and plan_fft! Error when using pmap and plan_fft! May 21, 2022
@Lightup1
Copy link
Author

Lightup1 commented May 21, 2022 •
edited

Without FFTW but with an anoymous function, works good

using Distributed
using ClusterManagers
addprocs(2)
@everywhere begin
    ##
    N=2048
    Tpx=1
    ##
    function mapfunc(Tpx)
        test2->Tpx * test2
    end
    f=mapfunc(Tpx)
end
##
test2=[rand(ComplexF64,N), rand(ComplexF64,N)]
F=pmap(f,test2)
print("Completed")
##

julia debug.jl
Completed

With FFTW without anoymous function, works good too

using Distributed
using ClusterManagers
addprocs(2)
@everywhere begin
    using FFTW
    FFTW.set_num_threads(1)
    ##
    N=round(Int, 2048)
    ##
    Tpx=plan_fft(rand(ComplexF64,N))
    ##
    # function mapfunc(Tpx)
    #     test2->Tpx* test2
    # end
    f(test2)=Tpx* test2
end
##
test2=[rand(ComplexF64,N), rand(ComplexF64,N)]
F=pmap(f,test2)
print("Completed")
##

julia debug.jl
Completed

With FFTW and anoymous function, same error again

using Distributed
using ClusterManagers
addprocs(2)
@everywhere begin
    using FFTW
    FFTW.set_num_threads(1)
    ##
    N=round(Int, 2048)
    ##
    Tpx=plan_fft(rand(ComplexF64,N))
    ##
    function mapfunc(Tpx)
        test2->Tpx* test2
    end
    f=mapfunc(Tpx)
end
##
test2=[rand(ComplexF64,N), rand(ComplexF64,N)]
F=pmap(f,test2)
print("Completed")
##

julia debug.jl
      From worker 3:
      From worker 3:    Please submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.
      From worker 2:
      From worker 2:    Please submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.
      From worker 3:    Exception: EXCEPTION_ACCESS_VIOLATION at 0x54486564 -- .text at C:\Users\dell\.julia\artifacts\b7dd1809d0626eac3bf6f97ba8ccfbb6cc63c509\bin\libfftw3-3.dll (unknown line)
      From worker 3:    in expression starting at none:0
      From worker 3:    .text at C:\Users\dell\.julia\artifacts\b7dd1809d0626eac3bf6f97ba8ccfbb6cc63c509\bin\libfftw3-3.dll (unknown line)
      From worker 2:    Exception: EXCEPTION_ACCESS_VIOLATION at 0x54496564 -- .text at C:\Users\dell\.julia\artifacts\b7dd1809d0626eac3bf6f97ba8ccfbb6cc63c509\bin\libfftw3-3.dll (unknown line)
      From worker 2:    in expression starting at none:0
      From worker 2:    .text at C:\Users\dell\.julia\artifacts\b7dd1809d0626eac3bf6f97ba8ccfbb6cc63c509\bin\libfftw3-3.dll (unknown line)
      From worker 2:    unsafe_execute! at C:\Users\dell\.julia\packages\FFTW\SDUwi\src\fft.jl:466 [inlined]
      From worker 2:    * at C:\Users\dell\.julia\packages\FFTW\SDUwi\src\fft.jl:721 [inlined]
      From worker 2:    #3 at F:\Simulation\Trap simulation\2layers trap\BEM2Layers\ElectronTrapPost\DC_1D\th2\debug.jl:13
      From worker 2:    unknown function (ip: 0000000052d93c66)
      From worker 3:    unsafe_execute! at C:\Users\dell\.julia\packages\FFTW\SDUwi\src\fft.jl:466 [inlined]
      From worker 3:    * at C:\Users\dell\.julia\packages\FFTW\SDUwi\src\fft.jl:721 [inlined]
      From worker 3:    #3 at F:\Simulation\Trap simulation\2layers trap\BEM2Layers\ElectronTrapPost\DC_1D\th2\debug.jl:13
      From worker 3:    unknown function (ip: 0000000052d94566)
      From worker 3:    jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]
      From worker 3:    do_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\builtins.c:713
      From worker 3:    #106 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:278
      From worker 3:    run_work_thunk at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:63
      From worker 3:    macro expansion at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:278 [inlined]
      From worker 3:    #105 at .\task.jl:423
      From worker 3:    unknown function (ip: 0000000052d861a3)
      From worker 2:    jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]
      From worker 2:    do_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\builtins.c:713
      From worker 3:    jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]
      From worker 3:    start_task at /cygdrive/c/buildbot/worker/package_win64/build/src\task.c:877
      From worker 3:    Allocations: 7966979 (Pool: 7963802; Big: 3177); GC: 10
      From worker 2:    #106 at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:278
      From worker 2:    run_work_thunk at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:63
      From worker 2:    macro expansion at C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:278 [inlined]
      From worker 2:    #105 at .\task.jl:423
      From worker 2:    unknown function (ip: 0000000052d858a3)
      From worker 2:    jl_apply at /cygdrive/c/buildbot/worker/package_win64/build/src\julia.h:1788 [inlined]
      From worker 2:    start_task at /cygdrive/c/buildbot/worker/package_win64/build/src\task.c:877
      From worker 2:    Allocations: 7967560 (Pool: 7964384; Big: 3176); GC: 10
Worker 3 terminated.
ERROR: LoadError: Worker 2 terminated.ProcessExitedException
(2)
Stacktrace:
  [1] (::Base.var"#892#894")(x::Task)
    @ Base .\asyncmap.jl:177
  [2] foreach(f::Base.var"#892#894", itr::Vector{Any})
    @ Base .\abstractarray.jl:2694
  [3] maptwice(wrapped_f::Function, chnl::Channel{Any}, worker_tasks::Vector{Any}, c::Vector{Vector{ComplexF64}})
    @ Base .\asyncmap.jl:177
  [4] wrap_n_exec_twice
    @ .\asyncmap.jl:153 [inlined]
  [5] #async_usemap#877
    @ .\asyncmap.jl:103 [inlined]
  [6] #asyncmap#876
    @ .\asyncmap.jl:81 [inlined]
  [7] pmap(f::Function, p::WorkerPool, c::Vector{Vector{ComplexF64}}; distributed::Bool, batch_size::Int64, on_error::Nothing, retry_delays::Vector{Any}, retry_check::Nothing)
    @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\pmap.jl:126
  [8] pmap(f::Function, p::WorkerPool, c::Vector{Vector{ComplexF64}})
    @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\pmap.jl:101
  [9] pmap(f::Function, c::Vector{Vector{ComplexF64}}; kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\pmap.jl:156
 [10] pmap(f::Function, c::Vector{Vector{ComplexF64}})
    @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\pmap.jl:156
 [11] top-level scope
    @ Unhandled Task ERROR: EOFError: read end of file
Stacktrace:
 [1] (::Base.var"#wait_locked#645")(s::Sockets.TCPSocket, buf::IOBuffer, nb::Int64)
   @ Base .\stream.jl:892
 [2] unsafe_read(s::Sockets.TCPSocket, p::Ptr{UInt8}, nb::UInt64)
   @ Base .\stream.jl:900
 [3] unsafe_read
   @ .\io.jl:724 [inlined]
 [4] unsafe_read(s::Sockets.TCPSocket, p::Base.RefValue{NTuple{4, Int64}}, n::Int64)
   @ Base .\io.jl:723
 [5] read!
   @ .\io.jl:725 [inlined]
 [6] deserialize_hdr_raw
   @ C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\messages.jl:167 [inlined]
 [7] message_handler_loop(r_stream::Sockets.TCPSocket, w_stream::Sockets.TCPSocket, incoming::Bool)
   @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:165
 [8] process_tcp_streams(r_stream::Sockets.TCPSocket, w_stream::Sockets.TCPSocket, incoming::Bool)
   @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:126
 [9] (::Distributed.var"#99#100"{Sockets.TCPSocket, Sockets.TCPSocket, Bool})()
   @ Distributed .\task.jl:423
Unhandled Task ERROR: EOFError: read end of file
Stacktrace:
 [1] (::Base.var"#wait_locked#645")(s::Sockets.TCPSocket, buf::IOBuffer, nb::Int64)
   @ Base .\stream.jl:892
 [2] unsafe_read(s::Sockets.TCPSocket, p::Ptr{UInt8}, nb::UInt64)
   @ Base .\stream.jl:900
 [3] unsafe_read
   @ .\io.jl:724 [inlined]
 [4] unsafe_read(s::Sockets.TCPSocket, p::Base.RefValue{NTuple{4, Int64}}, n::Int64)
   @ Base .\io.jl:723
 [5] read!
   @ .\io.jl:725 [inlined]
 [6] deserialize_hdr_raw
   @ C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\messages.jl:167 [inlined]
 [7] message_handler_loop(r_stream::Sockets.TCPSocket, w_stream::Sockets.TCPSocket, incoming::Bool)
   @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:165
 [8] process_tcp_streams(r_stream::Sockets.TCPSocket, w_stream::Sockets.TCPSocket, incoming::Bool)
   @ Distributed C:\Users\dell\AppData\Local\Programs\Julia-1.7.2\share\julia\stdlib\v1.7\Distributed\src\process_messages.jl:126
 [9] (::Distributed.var"#99#100"{Sockets.TCPSocket, Sockets.TCPSocket, Bool})()
   @ Distributed .\task.jl:423
F:\Simulation\Trap simulation\2layers trap\BEM2Layers\ElectronTrapPost\DC_1D\th2\debug.jl:19
in expression starting at F:\Simulation\Trap simulation\2layers trap\BEM2Layers\ElectronTrapPost\DC_1D\th2\debug.jl:19

@giordano
Copy link
Member

For the record, this issue has been cross-posted at JuliaLang/julia#45406

@Lightup1
Copy link
Author

Sorry for that I just think it may relative to package Distributed and FFTW, so I posted it at two places

@giordano
Copy link
Member

giordano commented May 21, 2022 •
edited

It's always a good practice to leave a reference when you cross-post issues, to avoid multiple people wasting their times independently, instead of working together in a single place.

@gaurav-arya
Copy link
Contributor

(copying from Slack)

I think it's because you're communicating plans between workers, which you're not allowed to do (https://discourse.julialang.org/t/fft-plan-cant-be-sent-between-processes/877). The function f that you pass to pmap uses the Tpx defined on the root processor, not the workers, so you'd wanna fix that.

When I ran into this issue I just hacked up this to make my life easier, although it's not necessarily the best option if you want more control over your plans: https://github.com/gaurav-arya/WavePropagation.jl/blob/main/src/planned_fft.jl

@Lightup1
Copy link
Author

Lightup1 commented May 21, 2022 •
edited

I know your point, but what makes these two fs below different to pmap?

@everywhere begin 
    function mapfunc(Tpx)
        test2->Tpx* test2
    end
    f=mapfunc(Tpx)
end

@everywhere f(test2)=Tpx* test2

@islent islent mentioned this issue Aug 24, 2022
Closed
@vtjnash
Copy link
Contributor

vtjnash commented Feb 11, 2024

Seems like this package should add some checks to make sure the plan isn't a C_NULL pointer

@vtjnash vtjnash mentioned this issue Feb 11, 2024
Closed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
4 participants
@vtjnash @giordano @Lightup1 @gaurav-arya