Chan <firstname.lastname@example.org> wrote:
> I have a question on how oracle consider IBM DUAL or Sun 8 core CPUS.
> ie. Consider as dual CPU's and assign two physical process to each CPU?
I do not remeber about Power, but UltraSparc T1 is counted by Oracle
as 0.25 per core - so you need two licenses for all 8 cores.
In article <email@example.com>, ian-
> Chan wrote:
> > How operating system schedules processes to run on cpu's. if the CPU
> > is Dual core or 8 core sun T1 processer.
> It sees the cores as CPUs.
Actually (I think) each core consist 4 strands (due hyperthreading model
called coolthreads) and each strand is seen as CPU, so 8 core T1
processor shows 32 CPU's.
> Actually (I think) each core consist 4 strands (due hyperthreading model
> called coolthreads) and each strand is seen as CPU, so 8 core T1
> processor shows 32 CPU's.
This is correct. See http://blogs.sun.com/roller/page/fintanr/20051206
for an example of prtdiag/psrinfo output (and some pictures of a T2000
in a rack).
>From a high level, each thread is treated as a separate CPU.
There are various optimizations designed to spread loads
across the various cores before loading up each core w/ more
than 1 thread to execute, and the idle thread on each CPU is
designed to halt or stall that CPU when there's nothing to do
so that other threads on the same core can use those pipeline
RE: Help me use my Dual Core CPU! [Simon=20Wittber]
[9fans] smp issues with dual core cpu? hello
i have a dual core 2 (intel dual core 2 6600) cpu, when booting
without *nomp= the kernel prints both cpu cores but get hanged
randomly, sometimes it runs for a while and i can run commands,
sometimes it doesn't start the shell. Ctrl+tt keystrokes work.
i have disabled usb, network card (rtl), serial and parallel ports,
audio, and all the devices the bios let me disable, but the problem is
timesync is not running on the machine, and cron seems to behave correctly.
when using one core it work as expected.
any hints about what could be happening? i have tested plan9 ti...
Poor ENVI performance on dual CPU Hi,
Recently I started working on a brand new dual CPU quad core machine
to do some number crunching on satellite data using ENVI 4.4.
Well, I found that is not exactly the case. A simple 'sum bands' over
538 bandes (5040x2520 pixels) takes ages to complete, progressing
about 1% per minute, with none of the 8 cores going to 100% processing
and the total CPU usage remaining below 1%.
The weird thing is that when I export a subset of those bands to an
IDL variable, the TOTAL function does the same computation in a few
seconds where the ENVI 'sum bands' takes minutes to complet...
[Revolution] IBM Broadway CPU dual-core http://www.revogaming.net/html/modules/news/article.php?storyid=145
RevoGaming has heard from sources inside the development community that
IBM has finalised the Broadway processor and is showing it to
developers. Details inside.
The details come from two different sources inside the development
community. One source revealed the information to RevoGaming around
three weeks ago, whilst the other revealed it to us a few days ago. We
were waiting for a word from another development insider before we
would report it.
Apparently, the "Broadway" processor is finished, and IBM has shown...
mpi(ch) on dual-core CPUs (X2 Hi there,
Does anyone know if the to-date versions mpi or mpich will support the
new released (or soon to be released) dual-core CPUs?
Should we expect a 1 dual-core CPU setup to be -in principle- as
efficient as 2 CPUs on the same dualCPU-motherboard setup in MPI jobs?
> Hi there,
> Does anyone know if the to-date versions mpi or mpich will support the
> new released (or soon to be released) dual-core CPUs?
> Should we expect a 1 dual-core CPU setup to be -in principle- as
> efficient as 2 CPUs on the same dualCPU-motherbo...
2x opteron single core or 1xdual core CPU server for Oracle?
I need to size the Opteron based server for Oracle.
Oracle will be implemented on Windows 2003.
What solution is better?:
server with two single core CPUs or
server with one dual core CPU.
(the same clock rate).
In case I will choose two single core CPU which OS is better:
Windows server 2003 64 bit or 32bit version?
> What solution is better?:
> server with two single core CPUs or
> server with one dual core CPU.
> (the same clock rate).
In my opinion 2 CPU single cores.
In this way you can exploit the hypertransport and the single bus toward
can I tell difference between dual-core proc, and two processors, one core each? Say I have a dedicated server hosted remotely. Apparently if /proc/
cpuinfo lists two CPUs, it could either mean that (a) there are two
physical CPUs on the motherboard, (b) there is one dual-core CPU, or
(c) there is a CPU with Hyper-Threading enabled to make it look like
two CPUs. Is there a way for me to tell, within the operating system,
which is the case? Or can the operating system not "see" the
difference between two CPUs, one CPU with two cores, or one CPU with
Support at one place told me that the only way to do it is to look at
the model name of the CPU...
I'm distrait Upgrade to Core 2 Duo E4600 OR dual core E2220 i will upgrade my PC in few day's
this is my PC Specialtion
CPU:-..... P4 651 3.4 GHz HT
Motherboard :-MSI MS-7235 ChipSet Intel P965/G965 rev. C2
Ram :-..........1 GB 266MHz DDR2
Video Card::- ...Msi Nx 7600Gs 512mbDDR2
surely the dual core cpu will give more performance over the HT P4
i wonder if the E2220 have some effect
On Thu, 3 Jul 2008 11:41:14 -0700 (PDT), cassano
>i will upgrade my PC in few day's
>this is my PC Specialtion
>CPU:-..... P4 651 3.4 GHz...
Development for dual core machine Hi guys,
I'm sorry, I'm not sure this is the correct group to be asking this
kind of question...
I'm going to develop a software package that includes a web server
(and PHP code) , a database, and some Python code of course. I am
being strongly suggested to make it to work on a dual- or multi-core
computer, but I'm confused on how to take advantage of the multiple
>From what I read, I think that simply by making the package run in
several separate processes (web server, database server, Python
interpreter, etc.), and/or using multiple threads (which I will
KOTOR2, dual core and NVidia I just bought a new PC - pretty nice - dual core, dual video cards,
the whole shooting match. When I tried to run KOTOR2 I ran into the
dreaded dual-core/NVidia slow down problem. Has anyone else run into
this? I found some suggestions on the net and tried the registry hack
to force the machine to use just one core while running KOTOR2 but it
Any suggestions out there?
Thusly Anarien <AnarienNOSPAM@gmail.com> Spake Unto All:
> When I tried to run KOTOR2 I ran into the
>dreaded dual-core/NVidia slow down problem.
Huh? What dreaded dual-core/nvidia s...
how to check if machine is dual core Hello
I have some machines that an ex-employee here ordered before he left.
They are supposed to be dual core.. but how do I check to make sure
they are dual cores, and not just duals?
I have Xeon, Athalon and Opteron machines. Could someone tell me what
command to use? Most of these machines have Linux OS on them, and some
> I have some machines that an ex-employee here ordered before he left.
> They are supposed to be dual core.. but how do I check to make sure
> they are dual cores, and not just duals?
> I have Xeon, Athlon and ...
STALKER dual core performance STALKER claims to make use of dual core. Below are the improvements you can
expext in STALKER with dual core. What a joke!
On Wed, 25 Apr 2007 01:32:06 GMT, Pipboy <firstname.lastname@example.org> wrote:
>STALKER claims to make use of dual core. Below are the improvements you can
>expext in STALKER with dual core. What a joke!
If I remember correctly, development on the STALKER engine was
originally started many years ago, so it's not surpri...
Re: CPU time #8 Paul:
I can't add anything to expert diagnoses of CPU time vs. waiting time. =
I'll focus on 'Why the wait?'.
RDBMS' typically scan tables at much slower speeds than SAS. Network =
transfers of large volumes of data also tend to take time. Check to see =
how much data the query is transferring from server to local SAS =
machine. If a relatively small volume of data, the bottleneck is likely =
occurring on the server. If a large volume of data, suspect network =
A SAS 'libname' connection to a server may not be able to take advantage =
Dedicated CPU core for Python? Dear readers,
I was wondering, if Python in the foerseeable future will allocate one
CPU core just for the interpreter, so heavy Python operations does
slow down the OS?
It seams to me like a perfect use for a CPU core =)
Lots of love,
Louise Hoffman wrote:
> I was wondering, if Python in the foerseeable future will allocate one
> CPU core just for the interpreter, so heavy Python operations does
> slow down the OS?
When running scripts, or loading modules, Python does not really behave
as an interpreter. Instead it compiles the human-readable code to a
bytecode which ...
gfortran, g95, and dual-core Can gfortran or g95 gain anything from dual- or multi-core processors in
either speed of compilation or speed of execution? Does anything
besides clock speeed matter much?
Charles Russell <NOSPAM@bellsouth.net> wrote:
> Can gfortran or g95 gain anything from dual- or multi-core processors in
> either speed of compilation or speed of execution?
If nothing else, having a multiple cores allows mltiple processes to run
at the same time. This is, of course, an issue that has come up decades
ago with multi-processor archiertctures long before the current cop of
so how does libtask use 8 core box? http://swtch.com/libtask/
On Thu, 5 Aug 2010, gavino wrote:
"Only one task runs at a time [...]".
All content in this message, posted from <email@example.com>, is my
personal opinion, representing noone else than myself.
Dual Core Processor for Solaris 10? Hello
Since PCs are coming out with these dual-core processors, will current
versions of Solaris 10 work with these or not??
I am closer to getting a new Intel system PC and most new PCs are with
this dual-core processors, so Im wondering if Solaris 10 will install
"as400" <firstname.lastname@example.org> writes:
>Since PCs are coming out with these dual-core processors, will current
>versions of Solaris 10 work with these or not??
The Intel Dual Core CPUs present themselves as ordinary CPUs and
I don't expect an issue there (the first Intel "Dual Core&...
PowerMac G5 Dual running on only 1 CPU? The about this Mac box says that my Dual G5 2 Ghz has only 1 CPU and
the System Profiler also does. The activity monitor shows only 1 bar.
So, do I really have only 1 working CPU or is it just a software bug?
In article <email@example.com>,
"HornyLaBelle" <firstname.lastname@example.org> wrote:
> The about this Mac box says that my Dual G5 2 Ghz has only 1 CPU and
> the System Profiler also does. The activity monitor shows only 1 bar.
> So, do I really have only 1 working CPU or is it just a software bug?
Hard to say from here, but _if_ it...
Matlab crashes with Intel Core 2Quad cpu Hello,
I have a PC running Windows XP SP2 and the processor is a
Intel Core 2Quad. When I start Matlab2007b the GUI appears
and crashes/disappears right away.
I've searched the Matlab Newsgroup and found that some
people had that problem with AMD processor and fixed the
issue by editing the blas.spec file. Would someone know what
to add to my blas.spec file or is it something else? Below
is what's in blas.spec right now:
GenuineIntel Family * Model * mkl.dll mklcompat.dll #
AuthenticAMD Family 6 Model * mkl.dll mklcompat.dll # AMD
why does scp not use all my cores on a multi-cpu machine? On a unloaded multi-cpu machine why does scp still use a single processor
when copying a bunch of files? Isn't this an "embarassingly parallel"
problem? There is no link betweek encrypting file1 and file2 is there? So
why not use all my cores / cpus? I used top to check the loads and only one
cpu seems to be in play.
Does this need to be enabled somehow or is the current behavour the
Robert Heller wrote:
> scp a.dat b.dat c.dat somehost.com:
> tar cf - a.dat b.dat c.dat| ssh somehost.com tar xf -
These *should* be similar in performanc...