[Rd] linux multi-threaded compilation is running only on one processor

2012-12-28 Thread Vitaliy FEOKTISTOV
Hello, I compiled R-2.15.2 with linux intel compilers (see below). when I execute some R code on a // 4 proc x 4 cores // server (export MKL_NUM_THREADS = 16) very often I have the situations where only one processor (4 cores) is active instead of 4 (16 cores) ! do you know this fact depends on

Re: [Rd] linux multi-threaded compilation is running only on one processor

2012-12-28 Thread Simon Urbanek
On Dec 28, 2012, at 5:23 AM, Vitaliy FEOKTISTOV wrote: > Hello, > > I compiled R-2.15.2 with linux intel compilers (see below). > > when I execute some R code on a // 4 proc x 4 cores // server > (export MKL_NUM_THREADS = 16) > very often I have the situations where only one processor (4 cores)

Re: [Rd] How to ensure -O3 on Win64

2012-12-28 Thread Matthew Dowle
On 28.12.2012 00:41, Simon Urbanek wrote: On Dec 27, 2012, at 6:08 PM, Matthew Dowle wrote: On 27.12.2012 17:53, Simon Urbanek wrote: On Dec 23, 2012, at 9:22 PM, Matthew Dowle wrote: Hi, Similar questions have come up before on the list and elsewhere but I haven't found a solution yet.