The smp tag has no wiki summary.
5
votes
2answers
826 views
VirtualBox guest: 16 CPUs detected but only 1 online
I am running VirtualBox (using the Qiime image http://qiime.org/install/virtual_box.html)
The physical hardware is a 32 core machine. The virtual machine in VirtualBox has been given 16 cores.
When ...
3
votes
2answers
659 views
OpenBSD SMP support
The OpenBSD 4.9 release announcement says
"SMP kernels can now boot on machines with up to 64 cores;"
So OpenBSD does support several CPU's/cores?
If i have a Core2Duo cpu in my laptop (t7100) ...
3
votes
1answer
81 views
Making a IRQ SMP Affinity change permanent
I have to change the smp_affinity of a interrupt permanently. The following code needs to be executed when the server reboots:
echo "1" > /proc/irq/152/smp_affinity_list
echo "2" > ...
2
votes
0answers
239 views
“Remote function call interrupts” (CAL in /proc interrupts). What is it?
I'm running a test program which generates a large number of threads and asynchronous I/O. I'm seeing very high counts of these interrupts in /proc/interrupts, the program cannot scale beyond a ...
1
vote
2answers
236 views
Kernel not detecting multicore cpu
Kernel Version
3.3.4-5.fc17.x86_64
CPU info:
sashan@dhcp-au-122 ~ $ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 42
model name : Intel(R) Core(TM) ...
1
vote
0answers
384 views
How to find memory per core on multicore CPU?
This is required information for some MPI using app that I am working with...
From its Makefile template:
#insert memory per core and uncomment the following line
#PREPROC= -D'MB_PER_CORE=750'
...
