On 11/23/07, Barry Smith <bsmith at mcs.anl.gov> wrote: > There are actually two separate concerns: optimized builds and > error checking. > --with-errorchecking and --with-debugging I would like to keep them > separate.
Me too. > Currently --with-errorchecking has an on or off value and --with- > debugging has an on or off value > > If you are proposing an intermediate --with-errorchecking that simply > returns the > error codes that is fine with me. > > --with-errorchecking=<on,intermediate,off> That is exactly what I was thingking about... > I still want by default --with-debugging=0 to leave on the full error > checking. Sorry, I just realized this. Full error checking is alway enabled by default, unless '--with-errorchecking=0' is passed, even when '--with-debugging=0' was passed. Then forget my proposal, I was confused. Sorry for making noise. > Reason: > most programmers are morons and develop code with optimization on > (why? because > they are dumb as stones and no matter how many times you tell them it > is a bad idea > they just ignore it, they prefer to spend hundreds of hours tracking > down bugs without > debug symbols then waste 1/1000 of a second on slower code while > developing.) That was one of my motivations, and because 'petsc4py' depend on error-checking for generating Python exceptions. If error-checking is always enabled by default unless explicitely disabled, then the current status of things is just perfect for me. Regards, and sorry again. I had the work figure in my mind. > On Nov 23, 2007, at 9:25 AM, Lisandro Dalcin wrote: > > > I would to propose some changes to error checking macros for > > optimized builds. > > > > 1.- SETERRQXXX: define them as > > > > #define SETERRQ[1|2|..](ierr,...) return ierr > > > > 2.- CHKERRQ: define them as > > > > #define CHKERRQ(ierr) if (ierr) return ierr > > > > For (1), it should be no performace impact. For (2), the extra check > > at almost every line of PETSc source code could impact performace, but > > any of you have a clear idea of how much? > > > > -- > > Lisandro Dalc?n > > --------------- > > Centro Internacional de M?todos Computacionales en Ingenier?a (CIMEC) > > Instituto de Desarrollo Tecnol?gico para la Industria Qu?mica (INTEC) > > Consejo Nacional de Investigaciones Cient?ficas y T?cnicas (CONICET) > > PTLC - G?emes 3450, (3000) Santa Fe, Argentina > > Tel/Fax: +54-(0)342-451.1594 > > > > -- Lisandro Dalc?n --------------- Centro Internacional de M?todos Computacionales en Ingenier?a (CIMEC) Instituto de Desarrollo Tecnol?gico para la Industria Qu?mica (INTEC) Consejo Nacional de Investigaciones Cient?ficas y T?cnicas (CONICET) PTLC - G?emes 3450, (3000) Santa Fe, Argentina Tel/Fax: +54-(0)342-451.1594
