Questions tagged [smp]
13 questions
44
votes
6 answers
Where exactly L1, L2 and L3 Caches located in computer?
Where exactly L1, L2 and L3 Caches Located in computer ?
I know, we use Cache to increase performance by picking DATA and INSTRUCTIONS from Cache rather than Main Memory.
Following are my questions
Where exactly L1 Cache located ? .
is on the CPU…
siva
4
votes
1 answer
Is there graceful degradation in symmetric multi-processing (SMP) systems?
Since graceful degradation is a fault-tolerant feature, is it true that in a multi-processor systems with symmetric multi-processing, there will be no graceful degradation?
Update: http://en.wikipedia.org/wiki/Fault-tolerant_system
Avon
4
votes
1 answer
how do I make windows use all processors
I have Windows 2008 on VirtualBox on Linux 2.6 on Athlon II X4 630 processor. When installing Windows the number of CPUs was set to 1 (I forgot to change it). Now I want Windows to use 2 processors (cores), so I changed the setting in VB, in Windows…
Tomasz Grobelny
- 223
3
votes
2 answers
Cache coherence literature for big (>=16CPU) systems
What books and articles can you recommend to learn basis of cache coherence problems in big SMP systems (which are NUMA and ccNUMA really) with >=16 cpu sockets?
Something like SGI Altix architecture analysis may be interesting.
What protocols…
osgx
- 7,017
2
votes
1 answer
Hugin, multicore CPU and optional GPU
Having the required hardware available:
How do I enable the use of GPU and/or Multiprocessing in Hugin
when creating stitched photographs?
Hannu
- 10,568
2
votes
0 answers
Linux command-line utils with built-in support of multithreading
I would like to be able to compare performance of multicore computers from a point of view of a user who performs typical day-to-day tasks in Linux. My current goal is to collect a list of compute intensive open-source command-line utilities that…
2
votes
4 answers
For virtual machines, when SMP is available on the host, should guest also have SMP setup?
I'm trying to find out the best "bang for my buck" so to speak in regards to virtual machines, and SMP.
I have an Intel Core 2 Duo, which of course has two cores and the VT extensions, and I'm running Ubuntu Linux (host) on it with VirtualBox, which…
supercheetah
- 974
1
vote
1 answer
Modern CPU for highly concurrent server applications?
I am looking for a hardware, which must run about 256 computationally intensive real-time concurrent tasks in 24 hour mode. Each task takes about 40-50 MFLOPs, so all tasks require about 10 GFLOPs. CPU-RAM speed is insignificant. All tasks must be…
psihodelia
- 935
1
vote
2 answers
Should I use NUMA or SMP with Vista 64-bit?
My Dell Precision T5500 workstation has an option in the BIOS for changing the memory mode between SMP and NUMA.
Which of these options should I use with Vista 64-bit? Does Vista support NUMA?
From what I understand the hardware I have is natively…
pauldoo
- 626
1
vote
2 answers
How to disable SMP in Windows 7?
Somebody told me to disable the SMP to reduce the number of cores to 1. How can I do that in Windows 7?
Jader Dias
- 16,236
1
vote
1 answer
What is SMP and what role does it have while booting a computer?
The boot process has an error at:
Freeing SMP alternative memory
and then hangs while boooting a notebook with Intel Celeron dual core and Linux.
What is SMP and what role does it have while booting a computer?
The problem is that the computer is…
infoclogged
- 323
0
votes
1 answer
Do multi-core processors have internal hardware for randomly changing in which core the instructions are executed?
A friend of mine says that a process always jumps between cores even if you pin a process to a specific core within operating system. He says that the processor manufacturers do this so that the processors won't burn due to hotspots (burning of…
yurtesen
- 451
0
votes
1 answer
How do you control thread affinity across multiple processes on Linux?
Question
How do I run two benchmarks such that:
They are both executing concurrently
Both benchmarks have half their threads on each socket.
No two threads share the same core.
Background
I have two programs: a benchmark written Fortran and a…
user736817