Am 08.07.2010 20:21, schrieb Greg Chicares:
> On 2010-07-08 17:53Z, Antoni Jaume wrote:
>> 2010/7/8 Joerg Bergmann<email@...>
>>> [...]On Windows XP as running
>>> on a AMD Phenom CPU, the system is loaded at near
>>> to 100% (92.99). On a 2x Xeon Quad workstation
>>> (gives 8 CPU's) with XP as well with server 2003,
>>> the load is approximately 13%. I have no idea
>>> how to solve that problem. Any hints? Anyone else?
>>> I think that maybe you're I/O limited, so on the Xeon the CPU are idle most
>> of the time.
> That could explain it, especially if the xeon has much less RAM
> or a much slower hard drive than the phenom.
> Here's another possibility. If only one of eight xeon CPUs is
> actually doing anything, then the total load would be 12.5%,
> which is awfully close to the 13% reported--so maybe the program
> is running single-threaded on the xeon.
> It'd be interesting to know whether running two separate instances
> of the program raises the load to, say, 25%.
Sorry, there is no I/O at all, but intense number crunching. But I read
the -mthreads flag while linking/compiling and linking. Sorry, but the
documentation isn't available at all. My co-workers with their XEON
test the code as compiled/linked using -mthreads today.