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Re: bug in g77
- To: Steven Castillo <scastill at nmsu dot edu>
- Subject: Re: bug in g77
- From: Toon Moene <toon at moene dot indiv dot nluug dot nl>
- Date: Tue, 13 Feb 2001 23:53:43 +0100
- CC: gcc-bugs at gcc dot gnu dot org
- Organization: Moene Computational Physics, Maartensdijk, The Netherlands
- References: <Pine.LNX.4.21.0102122352380.8899-100000@emlab2.nmsu.edu>
Steven Castillo wrote:
> I am trying to run some fortran codes requiring very large arrays (~ 1
> gbyte). When trying to compile a fortran code with a declared single
> precision floating point array having a length of more than 134217727
> using the command:
Yes, this is a well-known limitation of g77: It calculates all sizes of
objects in bits, so on 32-bit targets, the size of a REAL array is
limited to 2**32/32 - 1= 2**27 - 1 = 134217728 - 1 = 134217727 elements.
Your choices:
1. Help us fix this.
2. Switch to a 64-bit target, like Alpha.
[ Hint: The latter may be cheaper ]
--
Toon Moene - mailto:toon@moene.indiv.nluug.nl - phoneto: +31 346 214290
Saturnushof 14, 3738 XG Maartensdijk, The Netherlands
Maintainer, GNU Fortran 77: http://gcc.gnu.org/onlinedocs/g77_news.html
Join GNU Fortran 95: http://g95.sourceforge.net/ (under construction)