Hi all, we are using a 32 system under Win2003 Server Enterprise with a quadri Xeon and 24 Go RAM memory. I d like to know if this configuration can allow us to work with affy RMA and 330 CEL files from U133a affy chips.... next step being to use GCRMA. or should we move to a Linux OS with this server to run all these in 1 round ? or any other strategy to propose ? thanks Phil

Hi, As far as I am aware each process on 32-bit architecture can only address theoretically a maximum of approximately 4 gigabytes of memory (2^32 bits), even with the PAE extention allowing additional memory available to the architecture. See the R 1.9.0 windows FAQ for details on allowable memory. http://www.stats.ox.ac.uk/pub/R/rw-FAQ.html#There%20seems%20to%20be%20 a%20limit%20on%20the%20memory%20it%20uses! A previous (disjointed) thread recently suggests you *may* run into difficulties with 330 CEL files. https://www.stat.math.ethz.ch/pipermail/bioconductor/2004-June/004915. html People will be making algorithms more memory efficient, although to future proof the 32-bit addressable memory limits, you could investigate 64-bit architecture options with a suitable operating system if you are run into problems. marcus >>> <phguardiol@aol.com> 22/06/2004 6:15:52 AM >>> Hi all, we are using a 32 system under Win2003 Server Enterprise with a quadri Xeon and 24 Go RAM memory. I d like to know if this configuration can allow us to work with affy RMA and 330 CEL files from U133a affy chips.... next step being to use GCRMA. or should we move to a Linux OS with this server to run all these in 1 round ? or any other strategy to propose ? thanks Phil _______________________________________________ Bioconductor mailing list Bioconductor@stat.math.ethz.ch https://www.stat.math.ethz.ch/mailman/listinfo/bioconductor ______________________________________________________ The contents of this e-mail are privileged and/or confidenti...{{dropped}}