R help - Apr 1999 - R-0.64.0 installation on SGI IRIX 6.5 machine

Hi,

I am trying to install R-0.64.0 version on SGI machine running
IRIX 6.5.

Machine details:
319 <mind.krasnow.gmu.edu:R-0.63.3> uname -a
IRIX64 mind 6.5 07271714 IP27

Configure script runs fine and the output at the end of configure is:

R is now configured for mips-sgi-irix6.5

  Source directory:         /usr/local/R-0.64.0
  Installation directory:   /usr/local
  C compiler:               gcc -g
  FORTRAN compiler:         /usr/local/bin/g77  
  Gnome support enabled:    no


I am using gcc (egcs1.1.1) and g77 combination.
I use the GNU make(version 3.77) rather than the sgi make.
I went through your help mailing list and found that
I have to edit the Mathlib.h file in src/include directory
to undefine certain definitions which conflict with sgi's
definition.

When I run "gmake test", it fails; the details are given below.

....................
gmake[5]: Entering directory
`/usr/local/R-0.64.0/src/library/profile'
Building system startup profile
gmake[5]: Leaving directory `/usr/local/R-0.64.0/src/library/profile'
gmake[4]: Leaving directory `/usr/local/R-0.64.0/src/library'
gmake[3]: Leaving directory `/usr/local/R-0.64.0/src'
You should `make docs' now ...
gmake[2]: Leaving directory `/usr/local/R-0.64.0'
LC_ALL=C ../bin/R --vanilla < simple-true.R > simple-true.Rout
Comparing `simple-true.Rout' to
`/usr/local/R-0.64.0/tests/simple-true.Rout.save' ... OK
LC_ALL=C ../bin/R --vanilla < simple-tests.R > simple-tests.Rout
Comparing `simple-tests.Rout' to
`/usr/local/R-0.64.0/tests/simple-tests.Rout.save' ...17c17
< [1] FALSE
---
> [1] TRUE
gmake[1]: *** [simple-tests.Rout] Error 1
gmake[1]: Leaving directory `/usr/local/R-0.64.0/tests'
gmake: [test-All] Error 2 (ignored)
***********************************

The test that fails from the simple-test.Rout file is
> Meps <- .Machine $ double.eps
> abs(1- .Machine$double.xmax * 
       10^(-.Machine$double.max.exp*log10(2)))/Meps < 1e3

According to the file the test should return true but get a false on this
machine.

I ran R and printed the list of objects:

.....
.Machine 
List of 14
 $ double.eps           : num 2.22e-16
 $ double.neg.eps       : num 1.11e-16
 $ double.xmin          : num 2.23e-308
 $ double.xmax          : num 1.80e+308
 $ double.base          : int 2
 $ double.digits        : int 53
 $ double.rounding      : int 2
 $ double.guard         : int 0
 $ double.ulp.digits    : int -52
 $ double.neg.ulp.digits: int -53
 $ double.exponent      : int 11
 $ double.min.exp       : int -1022
 $ double.max.exp       : int 1024
 $ integer.max          : int 2147483647
......

All these outputs match with the numbers I found on the help mailing list.

Can someone tell why the test returns false? Should I be using some other
combination (sgi cc instead of gcc) to make this test work?

Thanks,

Jayshree Sarma
ps: reply to jsarma at cs.gmu.edu - I do not subscribe to the r-help list.


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Jayshree Sarma <jsarma at cs.gmu.edu> writes:
> gmake[1]: *** [simple-tests.Rout] Error 1
> gmake[1]: Leaving directory `/usr/local/R-0.64.0/tests'
> gmake: [test-All] Error 2 (ignored)
> ***********************************
> 
> The test that fails from the simple-test.Rout file is
> 
> > Meps <- .Machine $ double.eps
> > abs(1- .Machine$double.xmax * 
>        10^(-.Machine$double.max.exp*log10(2)))/Meps < 1e3
The interesting bit of information missing from your post is what the 
actual value of the left hand side of that comparison is. On
Linux/i386 I get 560. If you get 1001 (say), I wouldn't worry too
much, but if it's some wild number, then you may be in deeper trouble.
(e.g. if log10(2) is not calculating the right value).

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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