After restart julia :
D:\install\Julia\Julia 0.3.0-prerelease-win64-ver3\Julia 0.3.0-prerelease
ver 3>bin\julia.exe -p 8
_
_ _ _(_)_ | A fresh approach to technical computing
(_) | (_) (_) | Documentation: http://docs.julialang.org
_ _ _| |_ __ _ | Type "help()" to list help topics
| | | | | | |/ _` | |
| | |_| | | | (_| | | Version 0.3.0-prerelease+2599 (2014-04-11 23:52
UTC)
_/ |\__'_|_|_|\__'_| | Commit bf7096c (50 days old master)
|__/ | x86_64-w64-mingw32
julia> const k=200000000
200000000
julia> tic();
julia> nheads = @parallel (+) for i=1:k
int(randbool())
end
exception on exception on 3: 4: ERROR: ERROR: exception on exception on 2:
exception on 7: ERROR: 5:
ERROR: ERROR: exception on k not defined6: exception on ERROR:
in anonymous at no file:1379
8k: not definedERROR:
in anonymous at no file:1379
k not definedk not defined
in anonymous at no file:1379
in anonymous at no file:1379
k not definedk not definedk not defined
in anonymous at no file:1379
in anonymous at no file:1379
in anonymous at no file:1379exception on
9: ERROR: k not defined
in anonymous at no file:1379
ERROR: no method +(UndefVarError, UndefVarError)
in mr_pairwise at reduce.jl:534
julia> toc()
elapsed time: 2.493525081 seconds
2.493525081
julia>
W dniu niedziela, 1 czerwca 2014 16:27:14 UTC+2 użytkownik paul analyst
napisał:
>
>
>
>
>
> *julia> const k=200000000;ERROR: cannot declare k constant; it already has
> a value:/Paul*
> W dniu niedziela, 1 czerwca 2014 16:13:27 UTC+2 użytkownik Andreas Noack
> Jensen napisał:
>>
>> This is the usual problem with global variables in Julia. If you define k
>> by
>>
>> const k=200000000
>>
>> the timing results should be similar.
>>
>>
>> 2014-06-01 16:09 GMT+02:00 paul analyst <[email protected]>:
>>
>>>
>>> D:\install\Julia\Julia 0.3.0-prerelease-win64-ver3\Julia
>>> 0.3.0-prerelease ver 3>bin\julia.exe -p 8
>>> _
>>> _ _ _(_)_ | A fresh approach to technical computing
>>> (_) | (_) (_) | Documentation: http://docs.julialang.org
>>> _ _ _| |_ __ _ | Type "help()" to list help topics
>>> | | | | | | |/ _` | |
>>> | | |_| | | | (_| | | Version 0.3.0-prerelease+2599 (2014-04-11
>>> 23:52 UTC)
>>> _/ |\__'_|_|_|\__'_| | Commit bf7096c (50 days old master)
>>> |__/ | x86_64-w64-mingw32
>>>
>>> julia> procs()
>>> 9-element Array{Int64,1}:
>>> 1
>>> 2
>>> 3
>>> 4
>>> 5
>>> 6
>>> 7
>>> 8
>>> 9
>>>
>>> julia> tic();
>>>
>>> julia> nheads = @parallel (+) for i=1:200000000
>>> int(randbool())
>>> end
>>> 100006468
>>>
>>> julia> toc()
>>> elapsed time: 2.77418807 seconds
>>> 2.77418807
>>>
>>> julia>exit()
>>>
>>>
>>> D:\install\Julia\Julia 0.3.0-prerelease-win64-ver3\Julia
>>> 0.3.0-prerelease ver 3>bin\julia.exe -p 8
>>> _
>>> _ _ _(_)_ | A fresh approach to technical computing
>>> (_) | (_) (_) | Documentation: http://docs.julialang.org
>>> _ _ _| |_ __ _ | Type "help()" to list help topics
>>> | | | | | | |/ _` | |
>>> | | |_| | | | (_| | | Version 0.3.0-prerelease+2599 (2014-04-11
>>> 23:52 UTC)
>>> _/ |\__'_|_|_|\__'_| | Commit bf7096c (50 days old master)
>>> |__/ | x86_64-w64-mingw32
>>>
>>> julia> k=200000000
>>> 200000000
>>>
>>> julia> tic();
>>>
>>> julia> nheads = @parallel (+) for i=1:k
>>> int(randbool())
>>> end
>>> 99989022
>>>
>>> julia> toc()
>>> elapsed time: 18.631674663 seconds
>>> 18.631674663
>>>
>>> julia>
>>>
>>> What hapend ?
>>>
>>> Paul
>>>
>>>
>>>
>>
>>
>> --
>> Med venlig hilsen
>>
>> Andreas Noack Jensen
>>
>
