Date: Tue, 18 Aug 1998 10:14:07 +0200 From: griepent@wias-berlin.de To: freebsd-questions@FreeBSD.ORG Subject: Floating point exceptions on i386 and FreeBSD-2.2.X Message-ID: <199808180814.AA14321@hilbert.wias-berlin.de>
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Dear FreeBSD community! I have used FreeBSD for three years in desktop publishing and I was always very satisfied with stability and performance of the well-organized FreeBSD system. But now I am disappointed because of difficulties coming up in numerical and mathematical computations. As a mathematician I had thought, that math should be one of the smaller problems for a computer ... But there occur so much serious floating point exceptions and strange underflows! Can I trust any longer the libm of FreeBSD? Most of my programs written in C use the Mesa library. They run very well on other architectures like Alpha machines with DEC Unix, Silicons with Irix and also i386 machines with Linux. Using the same compiler gcc-2.7.2.1 under FreeBSD-2.2.X I had always to compile libm, Mesa-2.6 libraries and my own programs without any optimization flags to get partially executable code! It is a pity but sticking to Linux seems to be the only way for me to get reliable numerical results. So long, Jens Griepentrog griepent@wias-berlin.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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