You can start with
?Rprof
which can help you find out what steps in your calculations are taking the
most time.
Depending on what, exactly, you're doing, look for places where you're
using a data frame when a matrix would serve the purpose. Data frames have
more overhead than matrices.
Sarah Go
Hi Ragia,
If time is really a big problem and you have a lot of datas and you want to use
all the cores of the processor, you should use FORTRAN for your calculations.
But this is only possible with a real FORTRAN developer and will take some
times.
I am an old freelance (61) and I began compu
,
>
>
>
> Ragia
>
>
>
>> Date: Tue, 15 Mar 2016 08:45:56 +1100
>> Subject: Re: [R] How to speed up R program
>> From: drjimle...@gmail.com
>> To: ragi...@hotmail.com
>> CC: r-help@r-project.org
>>
>> Hi Ragia,
>> Improving the efficiency
wish is taken from file to memory
> once) but it runs about 10k times and in each mad some calculations ?
>
> hope this clear the problem,
>
>
>
> Ragia
>
>
>
>> Date: Tue, 15 Mar 2016 08:45:56 +1100
>> Sub
100
> Subject: Re: [R] How to speed up R program
> From: drjimle...@gmail.com
> To: ragi...@hotmail.com
> CC: r-help@r-project.org
>
> Hi Ragia,
> Improving the efficiency of a program usually requires detailed
> analysis of what it is doing and how those operations can be perfor
Hi Ragia,
Improving the efficiency of a program usually requires detailed
analysis of what it is doing and how those operations can be performed
more rapidly. That is to say, without knowing what the program is
supposed to accomplish and how it is doing it now, very little help
can be provided. One
Dear group
I have two R sessions running on Ubuntu 14.0x server , and I found that my
program will take too long time to be finished( months...!), I used top command
and found that cpu usage is 21.3%.
the server is Enterprise SP-64 - 64G E5-1630v3 SoftRaid 2x2 TB Server . 6 core
how can
7 matches
Mail list logo
