From: Richard Kreckel Date: Mon, 22 Nov 1999 18:22:54 +0000 (+0000) Subject: - Fixed the timings-table X-Git-Tag: release_0-5-0~142 X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=commitdiff_plain;h=493389336664ea6de705921c4393531795d4ecfe - Fixed the timings-table --- diff --git a/INSTALL b/INSTALL index 5e300b5e..05275655 100644 --- a/INSTALL +++ b/INSTALL @@ -3,8 +3,9 @@ Prerequisites GiNaC requires the CLN library by Bruno Haible, available at or . -You will also need a C++ compiler adhering to the ANSI standard (we used gcc -for development so if you have a different compiler you are on your own). +You will also need a good C++ compiler adhering to the ANSI standard (we +used gcc for development so if you have a different compiler you are on +your own). Installation @@ -19,10 +20,7 @@ As with any autoconfiguring GNU software, installation is as easy as this: $ make install Known to work with: - - Linux/x86, EGCS-1.1.2 or GCC 2-95. - -The "make" step takes about 10 minutes, on a 586 DX / 133 MHz / 64 MB or -about 2 minutes on a P-III /550 MHz / 512 MB. + - Linux/x86, EGCS-1.1.2 or GCC 2-95.1/2-95.2 The "configure" script can be given a number of options to enable and disable various features. For a complete list, type: @@ -40,6 +38,18 @@ A few of the more important ones: More detailed installation instructions can be found in the documentation, in the doc/ directory. +The time the "make" step takes depends heavily on optimization levels. +Large amounts of memory (>128MB) will be required by the compiler, +also depending on optimization. To give you a rough idea of what you +have to expect the following table may be helpful. It was measured on +a P-III/500MHz with "enough" memory: + +step: | value of $CXXFLAGS: | comment: + | -O0 | -O1 | -O2 | +--------------+-------+-------+-------+------------------------------- +make | ~4m | ~6m | ~10m | building shared and static lib +make check | ~2m | ~2m | ~7m | mostly due to compilation + Problems with CLN =================