Re: [aroma.affymetrix] Speeding up RmaBackgroundCorrection

2014-03-07 Thread Henrik Bengtsson
On Fri, Mar 7, 2014 at 8:05 AM, Damian Plichta wrote: > Hi Henrik, > > Lowering memory helped - it's drinks on me when we meet. > > It has been running for approximately 7 days now ("ETA for unit type > 'expression': 20140320 23:20:26"). With the updated affxparser can I speed > it up by increasin

Re: [aroma.affymetrix] Speeding up RmaBackgroundCorrection

2014-03-07 Thread Damian Plichta
Hi Henrik, Lowering memory helped - it's drinks on me when we meet. It has been running for approximately 7 days now ("ETA for unit type 'expression': 20140320 23:20:26"). With the updated affxparser can I speed it up by increasing the memory burden? The current memory allocation is approxima

Re: [aroma.affymetrix] Speeding up RmaBackgroundCorrection

2014-03-04 Thread Henrik Bengtsson
Did lowering "memory/ram" solve your problem? Also, an updated version of affxparser that no longer should overflow by the integer multiplication is available (on Bioconductor). Cheers, Henrik On Thu, Feb 27, 2014 at 12:36 PM, Henrik Bengtsson wrote: > Congratulations Damian, > > I think your

Re: [aroma.affymetrix] Speeding up RmaBackgroundCorrection

2014-02-27 Thread Henrik Bengtsson
Congratulations Damian, I think your the first one to hit a limit of the Aroma Framework (remind me to by you a drink whenever you see me in person). I narrowed it down to the affxparser(*) package and I'll investigate further on how to fix this. It should not occur and I'm confident that it can

Re: [aroma.affymetrix] Speeding up RmaBackgroundCorrection

2014-02-26 Thread Damian Plichta
Hi Henrik, Thank you, that was helpful. I run to another problem though. I am trying to perform ExonRmaPlm(csQN, merge=TRUE) but this produces a following error: 20140226 23:25:33| Identifying CDF cell indices...done Error in vector("double", nbrOfCells * nbrOfArrays) : vector size can

Re: [aroma.affymetrix] Speeding up RmaBackgroundCorrection

2014-02-20 Thread Henrik Bengtsson
On Tue, Feb 18, 2014 at 7:30 PM, Damian Plichta wrote: > Thanks, that helped a lot. It took me less than 3 hours to perform the > background correction. > > Now I'm wondering if for the next step, quantile normalization, I could do a > similar trick. Is there a way to precompute the target empiric

Re: [aroma.affymetrix] Speeding up RmaBackgroundCorrection

2014-02-18 Thread Damian Plichta
Thanks, that helped a lot. It took me less than 3 hours to perform the background correction. Now I'm wondering if for the next step, quantile normalization, I could do a similar trick. Is there a way to precompute the target empirical distribution based on all arrays and then do the normalizat

Re: [aroma.affymetrix] Speeding up RmaBackgroundCorrection

2014-02-17 Thread Henrik Bengtsson
Hi. On Sun, Feb 16, 2014 at 6:53 PM, Damian Plichta wrote: > Hi, > > I'm processing around 5500 affymetrix exon arrays. The > RmaBackgroundCorrection() is pretty slow, 1-2 minutes/array. I played with > setOption(aromaSettings, "memory/ram", X) and increased X up to 100 but it > didn't have any e

[aroma.affymetrix] Speeding up RmaBackgroundCorrection

2014-02-16 Thread Damian Plichta
Hi, I'm processing around 5500 affymetrix exon arrays. The RmaBackgroundCorrection() is pretty slow, 1-2 minutes/array. I played with setOption(aromaSettings, "memory/ram", X) and increased X up to 100 but it didn't have any effect on this stage of analysis. Any way to speed the process up?