Re: [Rd] Performance issues with R2.15.1 built from source on Solaris

2012-08-10 Thread Eberle, Anthony
with R2.15.1 built from source on Solaris Is this a SPARC system? On at least some SPARC systems, the "long double" type in C is implemented very slowly in software, and it seems that it is used for the sums done when calculating standard deviations with "sd". Radford Neal

[Rd] Performance issues with R2.15.1 built from source on Solaris?

2012-08-09 Thread Eberle, Anthony
I have a question about building R (2.15.1) from source on a Solaris 10 64bit virtual server with 2 cores and 16GB memory that is running on an Oracle T4 server. Based on several tests I have done this configuration has been several orders of magnitude slower than any other configuration I've test