187 lines
3.6 KiB
HTML
187 lines
3.6 KiB
HTML
<HTML
|
|
><HEAD
|
|
><TITLE
|
|
>Linux as computing server</TITLE
|
|
><META
|
|
NAME="GENERATOR"
|
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.63
|
|
"><LINK
|
|
REL="HOME"
|
|
TITLE="HP HOWTO"
|
|
HREF="index.html"><LINK
|
|
REL="UP"
|
|
TITLE="
|
|
|
|
Solutions and Sizing
|
|
"
|
|
HREF="sizing.html"><LINK
|
|
REL="PREVIOUS"
|
|
TITLE="Internet/Intranet Linux server"
|
|
HREF="linux-intranet.html"><LINK
|
|
REL="NEXT"
|
|
TITLE="Linux as an office server"
|
|
HREF="linux-desktop.html"><META
|
|
HTTP-EQUIV="Content-Type"
|
|
CONTENT="text/html; charset=iso-8859-1"><META
|
|
NAME="Author"
|
|
CONTENT="Bruno Cornec"><META
|
|
NAME="KeyWords"
|
|
CONTENT="Linux,HP,HP-UX,Hewlett,Packard"></HEAD
|
|
><BODY
|
|
CLASS="SECT1"
|
|
BGCOLOR="#FFFFFF"
|
|
TEXT="#000000"
|
|
LINK="#0000FF"
|
|
VLINK="#840084"
|
|
ALINK="#0000FF"
|
|
><DIV
|
|
CLASS="NAVHEADER"
|
|
><TABLE
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
CELLPADDING="0"
|
|
CELLSPACING="0"
|
|
><TR
|
|
><TH
|
|
COLSPAN="3"
|
|
ALIGN="center"
|
|
>HP HOWTO:
|
|
|
|
Configuration Guide and Use of HP Products under Linux
|
|
|
|
(Version 0.94)</TH
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="left"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="linux-intranet.html"
|
|
><IMG
|
|
SRC="images/prev.png"
|
|
BORDER="0"
|
|
ALT="Previous"></A
|
|
></TD
|
|
><TD
|
|
WIDTH="80%"
|
|
ALIGN="center"
|
|
VALIGN="bottom"
|
|
>Chapter 4. Solutions and Sizing</TD
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="right"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="linux-desktop.html"
|
|
><IMG
|
|
SRC="images/next.png"
|
|
BORDER="0"
|
|
ALT="Next"></A
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
><HR
|
|
ALIGN="LEFT"
|
|
WIDTH="100%"></DIV
|
|
><DIV
|
|
CLASS="SECT1"
|
|
><H1
|
|
CLASS="SECT1"
|
|
><A
|
|
NAME="LINUX-COMPUTING"
|
|
>4.3. Linux as computing server</A
|
|
></H1
|
|
><P
|
|
>
|
|
Generally, this machine is extremely stressed, mainly on the processor and RAM aspects.
|
|
Sometimes this is combined with intensive I/O needs.
|
|
We thus equip such a machine with high-end processors (nowadays Pentium III Xeon) with the greatest level 2 cache possible (nowadays 2 MB).
|
|
In RAM, we would tend to reach the maximum possible, thus 4 GB.
|
|
For this type of server, we should adapt the swap such as it covers all the needs in memory required by the computing codes to execute.
|
|
There is often no specific constraint on network performances, except in case of a computing cluster, in which case we may consider to equip the machines with 100 Mb/s cards with a switch between them, even with Myrinet, Dolphin or Gigabit products.
|
|
Typically, a LP1000 2*PIII 1.4GHz 1 GB/2*9GB is the target of this type of server.
|
|
The choice is extremely variable depending on the nature of the computation to do.
|
|
We should underline that there are processors, such as PA-Risc, much more performant in floating point computation than today Intel processors (up to 6 times). The new IA-64 Itanium family seems also to bring a better compromise for price/performances for that environment. </P
|
|
><P
|
|
>
|
|
This is by the way not the only approach as shown by the i-cluster project.
|
|
|
|
Cf: <A
|
|
HREF="http://www.hpl.hp.com/techreports/2001/HPL-2001-206.html"
|
|
TARGET="_top"
|
|
>http://www.hpl.hp.com/techreports/2001/HPL-2001-206.html</A
|
|
></P
|
|
></DIV
|
|
><DIV
|
|
CLASS="NAVFOOTER"
|
|
><HR
|
|
ALIGN="LEFT"
|
|
WIDTH="100%"><TABLE
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
CELLPADDING="0"
|
|
CELLSPACING="0"
|
|
><TR
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="linux-intranet.html"
|
|
><IMG
|
|
SRC="images/prev.png"
|
|
BORDER="0"
|
|
ALT="Previous"></A
|
|
></TD
|
|
><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="index.html"
|
|
><IMG
|
|
SRC="images/home.png"
|
|
BORDER="0"
|
|
ALT="Home"></A
|
|
></TD
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="linux-desktop.html"
|
|
><IMG
|
|
SRC="images/next.png"
|
|
BORDER="0"
|
|
ALT="Next"></A
|
|
></TD
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
>Internet/Intranet Linux server</TD
|
|
><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="sizing.html"
|
|
><IMG
|
|
SRC="images/up.png"
|
|
BORDER="0"
|
|
ALT="Up"></A
|
|
></TD
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
|
VALIGN="top"
|
|
>Linux as an office server</TD
|
|
></TR
|
|
></TABLE
|
|
></DIV
|
|
></BODY
|
|
></HTML
|
|
> |