Subject: Speed on SGI IRIX 5.3
From: Jinliang Liu (jinliang@atmosp.physics.utoronto.ca)
Date: Sat Jan 03 1998 - 07:42:19 MST
Dear CCM3-users,
I am running CCM3 with resolution of T42 coupled with LSM on a SGI IRIX 5.3.
The execution speed seems too slow, say 40h for a one-month simulation.
Could any of you tell me if this is normal. Also, could you tell me that,
is it possible for me to speed the execution by adding any other options
in the next compiling command lines
1 # This Makefile produces the NCAR Community Climate Model
executable on
2 # SGI architectures.
3 #
4 # Compiler flags:
5 # -r8: sets the default REAL size to 8 bytes
6 # -i4: sets the default INTEGER size to 4 bytes
7 # -g: produces symbol table information for debugging.
8 # -O2: optimizes execution speed.
9 #
10 EXEDIR = ./run
11 EXENAME = ccm3bin
12 CFLAGS = -I. -g -DSGI
13 SPEC_FFLAGS = -I. -r8 -i4 -g3 -O2 -c
14 FFLAGS = -I. -r8 -i4 -g3 -O2 -c
15 LDFLAGS = -mp
which I am using now. There is no -mpio option on my machine.
Tons of thanks!!
Have a GREAT NEW year!!!
Jinliang
================================================
Jinliang Liu
PhD student
Department of Physics
University of Toronto
60 St. George Street
Toronto, ON M5S 1A7
Phone: (416)978-2955
Fax: (416)978-8905
================================================
This archive was generated by hypermail 2b27 : Thu Jun 01 2000 - 09:05:53 MDT