[SL 10.0) Dual processor support
Hi all, today I got a question for the german suse-linux-faq about the dual processor support in SL 10.0. The submitter asked if dual processors (here: two Intel Pentuim 4) are recognized during setup, because after the installation the submitter sees only one processor. I did not answer yet, because I do not have a dual processor system to test it, but I followed Google to the following stuff: <google> http://www.suseforums.net/index.php?act=ST&f=4&t=14914 How do i check if both processors are running in suse? [...] type cat /proc/cpuinfo If it lists both cpu's...it recognized both cpu's...for instance... [...] If they aren't listed that most likely means you need to install the SMP kernel. </google> My question now is, if it is true that the installation system only works with one processor even if it detects two processors in order to avoid problems? And in addition if this installation behaviour leads to install the one-processor-kernel by default? bis dahin/kind regards Martin Mewes -- Oberhalb der Kulminationspunkte forstwirtschaftlicher Bestaende tendieren die Dezibelwerte gegen den Nullpunkt. http://www.larsschuette.de/ -> Klugscheisser ;-)
--- Ursprüngliche Nachricht --- Von: Martin Mewes
An: opensuse@opensuse.org Betreff: [opensuse] [SL 10.0) Dual processor support Datum: Thu, 13 Oct 2005 10:08:53 +0200 Hi all,
today I got a question for the german suse-linux-faq about the dual processor support in SL 10.0. The submitter asked if dual processors (here: two Intel Pentuim 4) are recognized during setup, because after the installation the submitter sees only one processor.
I did not answer yet, because I do not have a dual processor system to test it, but I followed Google to the following stuff:
<google>
http://www.suseforums.net/index.php?act=ST&f=4&t=14914 How do i check if both processors are running in suse? [...] type cat /proc/cpuinfo If it lists both cpu's...it recognized both cpu's...for instance... [...] If they aren't listed that most likely means you need to install the SMP kernel.
</google>
My question now is, if it is true that the installation system only works with one processor even if it detects two processors in order to avoid problems? And in addition if this installation behaviour leads to install the one-processor-kernel by default?
bis dahin/kind regards
Martin Mewes
Hi, I've got a Intel Pentium D processor system(Dual-Core) and the installation system detects both. It installed the SMP kernel. To check which kernel the system installed try uname -r Uli -- Highspeed-Freiheit. Bei GMX supergünstig, z.B. GMX DSL_Cityflat, DSL-Flatrate für nur 4,99 Euro/Monat* http://www.gmx.net/de/go/dsl
Hello,
"Ulrich Hölscher"
I've got a Intel Pentium D processor system(Dual-Core) and the installation system detects both. It installed the SMP kernel. To check which kernel the system installed try uname -r
So in your case the installation system has detected a dual core, which to my intention is not the same as a dual processor if you look at the motherboard. The submitter of the original question sees only one processor in the system. A dual core are two processors in _one_ unit, but a dual processor system are _two_ units or am I totally wrong with this. bis dahin/kind regards Martin Mewes -- Fragen zur unbeaufsichtigten Installation von SuSE Linux sind hier ontopic: suse-autoinstall@suse.com
On Thu, 2005-10-13 at 10:47 +0200, Martin Mewes wrote:
Hello,
"Ulrich Hölscher"
wrote: I've got a Intel Pentium D processor system(Dual-Core) and the installation system detects both. It installed the SMP kernel. To check which kernel the system installed try uname -r
So in your case the installation system has detected a dual core, which to my intention is not the same as a dual processor if you look at the motherboard. The submitter of the original question sees only one processor in the system.
A dual core are two processors in _one_ unit, but a dual processor system are _two_ units or am I totally wrong with this.
I have both types of systems and both had the SMP kernel automatically installed. If the installer is only seeing one cpu then there is a hardware problem that needs to be sorted out. -- Ken Schneider UNIX since 1989, linux since 1994, SuSE since 1998
Hi all,
Ken Schneider
On Thu, 2005-10-13 at 10:47 +0200, Martin Mewes wrote:
A dual core are two processors in _one_ unit, but a dual processor system are _two_ units or am I totally wrong with this.
I have both types of systems and both had the SMP kernel automatically installed. If the installer is only seeing one cpu then there is a hardware problem that needs to be sorted out.
Thanks so far ... I will now get back to the submitter and tell you the results "if any". But at least we can tell the folks that if the installation system detects either "dual core" or "dual processor" then the correct smp-kernel will be installed. bis dahin/kind regards Martin Mewes -- Die Hamburger Linux User Group (HHLUG) erreicht ihr ... ... WWW: http://www.hhlug.de/ ... ML : http://mlists.hhlug.de/mailman/listinfo/linux-l
Hi, On Thu, 13 Oct 2005, Martin Mewes wrote:
"Ulrich Hölscher"
wrote:
I've got a Intel Pentium D processor system(Dual-Core) and the installation system detects both. It installed the SMP kernel. To check which kernel the system installed try uname -r
So in your case the installation system has detected a dual core, which to my intention is not the same as a dual processor if you look at the motherboard. The submitter of the original question sees only one processor in the system.
A dual core are two processors in _one_ unit, but a dual processor system are _two_ units or am I totally wrong with this.
The SMP kernel gets installed even on single-CPU Pentium4 systems if HT is enabled in BIOS. Only during installation itself a non-smp is used. Cheers -e -- Eberhard Moenkeberg (emoenke@gwdg.de, em@kki.org)
On Thu, 2005-10-13 at 10:08 +0200, Martin Mewes wrote:
Hi all,
today I got a question for the german suse-linux-faq about the dual processor support in SL 10.0. The submitter asked if dual processors (here: two Intel Pentuim 4) are recognized during setup, because after the installation the submitter sees only one processor.
I did not answer yet, because I do not have a dual processor system to test it, but I followed Google to the following stuff:
<google>
http://www.suseforums.net/index.php?act=ST&f=4&t=14914 How do i check if both processors are running in suse? [...] type cat /proc/cpuinfo If it lists both cpu's...it recognized both cpu's...for instance... [...] If they aren't listed that most likely means you need to install the SMP kernel.
</google>
My question now is, if it is true that the installation system only works with one processor even if it detects two processors in order to avoid problems? And in addition if this installation behaviour leads to install the one-processor-kernel by default?
Have the person check to see which kernel was installed and also run top and hit the number 1 key to toggle smp view to check how many are recognized. Also dmesg|less will show how many cpu's were detected. Does the person have two physical cpu's or one with HT technology? -- Ken Schneider UNIX since 1989, linux since 1994, SuSE since 1998
Hi Kenn, hi *
Ken Schneider
Have the person check to see which kernel was installed and also run top and hit the number 1 key to toggle smp view to check how many are recognized. Also dmesg|less will show how many cpu's were detected. Does the person have two physical cpu's or one with HT technology?
The end of it all is, that the submitter was sitting in front of the wrong machine. He was trying to sort out dual core problems on a single processor machine. Sh*t can happen, thanks anyway for the kind answers. bis dahin/kind regards Martin Mewes -- Welche Mailingliste zu welchem Linux? suse-linux@suse.com -> SuSE Linux debian-user-german@lists.debian.org -> Debian GNU/Linux linux-kernel@vger.kernel.org -> Linux Kernel
participants (4)
-
"Ulrich Hölscher"
-
Eberhard Moenkeberg
-
Ken Schneider
-
Martin Mewes