Fernando Perez wrote:
On Dec 4, 2007 12:27 PM, Robert Kern <robert.kern@gmail.com> wrote:
user-friendly. Another option is to have our Fortran compiler "knowledge-base" separable from the rest of the package. scons could try to import them from, say, numpy_fcompilers first and then look inside numpy.distutils if numpy_fcompilers is not found. That way, a user could download a fresh "knowledge-base" into their source tree (and possibly tweak it) without the burden of installing a new numpy.
Is this something that really needs to be a code package? Why can't this knowledge (or at least the easily overridable part of it) be packaged in one or more .conf/.ini plaintext files? In that way, users could easily grab new data files or tweak the builtin ones, and at build time say
setup.py install --compiler_conf=~/my_tweaked.conf
Is that impossible/unreasonable for some reason?
It's not impossible, but there are at least a couple of places where it might be unreasonable. For example, look at the get_flags_arch() for Intel compilers: def get_flags_arch(self): v = self.get_version() opt = [] if cpu.has_fdiv_bug(): opt.append('-fdiv_check') if cpu.has_f00f_bug(): opt.append('-0f_check') if cpu.is_PentiumPro() or cpu.is_PentiumII() or cpu.is_PentiumIII(): opt.extend(['-tpp6']) elif cpu.is_PentiumM(): opt.extend(['-tpp7','-xB']) elif cpu.is_Pentium(): opt.append('-tpp5') elif cpu.is_PentiumIV() or cpu.is_Xeon(): opt.extend(['-tpp7','-xW']) if v and v <= '7.1': if cpu.has_mmx() and (cpu.is_PentiumII() or cpu.is_PentiumIII()): opt.append('-xM') elif v and v >= '8.0': if cpu.is_PentiumIII(): opt.append('-xK') if cpu.has_sse3(): opt.extend(['-xP']) elif cpu.is_PentiumIV(): opt.append('-xW') if cpu.has_sse2(): opt.append('-xN') elif cpu.is_PentiumM(): opt.extend(['-xB']) if (cpu.is_Xeon() or cpu.is_Core2() or cpu.is_Core2Extreme()) and cpu.getNCPUs()==2: opt.extend(['-xT']) if cpu.has_sse3() and (cpu.is_PentiumIV() or cpu.is_CoreDuo() or cpu.is_CoreSolo()): opt.extend(['-xP']) if cpu.has_sse2(): opt.append('-arch SSE2') elif cpu.has_sse(): opt.append('-arch SSE') return opt Expressing that without code could be hairy. That said, using configuration files as override mechanisms for each of the get_flags_*() methods would be feasible especially if there were a script to dump the current flag set to the configuration file. -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco