[R] byte coding compiling.....

[Uwe Ligges]

On 06.07.2022 19:54, akshay kulkarni wrote:
> Dear Bert,
>                   Thanks for your reply...
> 
> So
>> cmpfun(mclapply)

mclapply is already byte compiled as it is in a package.

You may want to
cmpfun(yourFunction)
the function that you use in the mclapply call.

Best,
Uwe Ligges


> 
> should  do the job right?
> 
> By the by, how can I give a reprex? Reprex of the code that I am giving to mclapply (as FUN argument)?
> 
> Yours sincerely,
> AKSHAY M KULKARNI
> ________________________________
> From: Bert Gunter <bgunter.4567 using gmail.com>
> Sent: Wednesday, July 6, 2022 10:32 PM
> To: akshay kulkarni <akshay_e4 using hotmail.com>
> Cc: R help Mailing list <r-help using r-project.org>
> Subject: Re: [R] byte coding compiling.....
> 
> Unlikely
> 
> See here:
>   https://www.r-bloggers.com/2017/08/how-to-make-best-use-of-the-byte-compiler-in-r/
> 
> Byte code compilation should be automatic in both cases, as I understand it. Of course, I could be wrong due to special features of parallel  programming, etc.
> 
> A reprex might be helpful here.
> 
> Cheers,
> Bert
> 
> 
> On Wed, Jul 6, 2022, 7:29 PM akshay kulkarni <akshay_e4 using hotmail.com<mailto:akshay_e4 using hotmail.com>> wrote:
> Dear members,
>                            I am using pbmclapply, the progress bar version of mclapply, from the parallel package. The point is, pbmclapply is three times faster than mclapply, and I think the most probable reason would be that pbmclapply is byte code compiled (I can think of no other reason).
> 
> I know the cmpfun function from compiler package. If I do:
> 
>> cmpfun(mclapply)
> 
> will the job be done? The point is mclapply may look for other functions in the parallel package. So I have to compile the whole package right? How do you do that? or in general, how do you byte code compile a whole package?
> 
> Thanking you,
> Yours sincerely,
> AKSHAY M KULKARNI
> 
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