number of cpu's Post: 302076394

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Operating Systems Solaris number of cpu's Post 302076394 by mgerdts on Monday 12th of June 2006 10:50:37 PM

06-12-2006

Registered User

Quote:

Originally Posted by dbasan

this will give you the details for all the processors

psrinfo -v

Solaris 9 (possibly in a patch) added the -p option to psrinfo to distinguish between physical processors and cores. UltraSPARC IV and IV+ CPU's have two cores per processor - psrinfo and psrinfo -v will display each core as a processor, possibly leading to confusion. psrinfo -vp will help clear this up.

Things get really confusing when you have a T2000 or T1000 (Solaris 10 and later only...) with one CPU that has 8 cores with 4 cores per thread. psrinfo will tell you that this little 1U or 2U box has 32 processors. psrinfo -vp will help you figure out how many CPU sockets are in use and how the cores/threads (strands) map to the physical processor.

Rumor (http://www.theregister.co.uk/2006/04/13/sun_refresh/) has it that the next generation will confuse this a bit more as you need to look at multiple (2?, 4?, more?) sockets, each sporting 64 threads. Time to beef up the scrollback buffer of your terminal if you want to look at all the output of psrinfo -v. Smilie

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LEARN ABOUT SUNOS

install-solaris

install-solaris(1M)													       install-solaris(1M)

NAME

       install-solaris - install the Solaris operating system

SYNOPSIS

       install-solaris

       install-solaris	invokes  the  Solaris  Install	program. Depending on graphical capability and available memory at the time of invocation,
       install-solaris invokes either a text-based installer or a graphical installer.

       The following minimum requirements for physical memory dictate which features are available during installation:

       For SPARC machines:

       128 MB

	   Minimum physical memory for all installation types

       128 MB

	   Minimum physical memory required for windowing system

       384 MB

	   Minimum physical memory required for graphical-based installation

       For x86 machines:

       256 MB

	   Minimum physical memory for all installation types

       256 MB

	   Minimum physical memory required for windowing system

       512 MB

	   Minimum physical memory required for graphical-based installation

       In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number  of  fea-
       tures available.

       install-solaris	exists	only  on  the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the  for more
       details.

       install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
       installation media. Refer to the  for disk space requirements.

       Refer to the  for more information on the various menus and selections.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcdrom  (Solaris instal-  |
       |			     |lation media)		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       pkginfo(1), install(1M), pkgadd(1M), attributes(5)

       It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.

								    23 Sep 2005 					       install-solaris(1M)