kose-y/julia-mpi-cuarray

CUDA-aware MPI with CuArrays.jl

julia-mpi-cuarray's Issues

Run example got ReadOnlyMemoryError

hi, I try to run the example in this repo, but got ReadOnlyMemoryError().
I'm using julia v1.2 with MPI v0.10 and CuArrays v1.2.1
here is the error log:

root@e0d8932c3ee9:/data/Julia-MPI-CuArray# mpirun -np 2 julia 02-broadcast.jl
------------------------------------------------------------------------------
 Running on 2 processes                                  
------------------------------------------------------------------------------
ERROR: LoadError: ReadOnlyMemoryError()
Stacktrace:                                                         
 [1] Bcast!(::CuArray{Float64,2}, ::Int64, ::Int64, ::MPI.Comm) at /root/.julia/packages/MPI/RzbIV/src/collective.jl:28
 [2] Bcast! at /root/.julia/packages/MPI/RzbIV/src/collective.jl:35 [inlined]
 [3] do_broadcast() at /data/Julia-MPI-CuArray/02-broadcast-impl.jl:30
 [4] main() at /data/Julia-MPI-CuArray/02-broadcast.jl:13
 [5] top-level scope at /data/Julia-MPI-CuArray/02-broadcast.jl:16
 [6] include at ./boot.jl:328 [inlined]
 [7] include_relative(::Module, ::String) at ./loading.jl:1094     
 [8] include(::Module, ::String) at ./Base.jl:31
 [9] exec_options(::Base.JLOptions) at ./client.jl:295         
 [10] _start() at ./client.jl:464
in expression starting at /data/Julia-MPI-CuArray/02-broadcast.jl:16