Re: [Qt-creator] parallel processing in make
On 7/16/2010 3:09 AM, ext Carter, Nathan wrote: Is there a way to tell Creator to use make -j N for some N in all projects? I know that I can change it on a per-project basis, but since it's a value that's pretty much just contingent on how many cores my machine has, I'd like to just say please use all cores all the time. I couldn't find this in the options. Did I miss it or should I file a request for it? (Or I could set MAKEFLAGS=-j 4 in my environment, but I guess I'm not sure where Qt Creator gets its environment from in OS X, when launched from Finder rather than the command line...maybe from my bash .profile?? I have no idea.) Google is your friend :) Setting them in ~/.MacOSX/environment.plist worked for me in the past (although I just learned that it might fail if you start QtCreator from Spotlight). I think this is really something you want to set system-wide / per user, and not somewhere inside QtCreator. Kai -- Kai Koehne Software Engineer Nokia, Qt Development Frameworks Nokia gate5 GmbH Firmensitz: Invalidenstr. 117, 10115 Berlin, Germany Registergericht: Amtsgericht Charlottenburg, Berlin: HRB 106443 B Umsatzsteueridentifikationsnummer: DE 812 845 193 Geschäftsführer: Dr. Michael Halbherr, Karim Tähtivuori ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] parallel processing in make
On Jul 16, 2010, at 3:49 AM, ext Coda Highland wrote: I can't imagine why Creator couldn't guess at a default value anyway; just ask QThreadPool what the ideal number of threads is. :P Actually I can't imagine why make couldn't guess at a default value by checking the number of cores :P (Our little project ibjom, a replacement for nmake on Windows, does exactly that.) Br, Eike On Thu, Jul 15, 2010 at 8:09 PM, Carter, Nathan ncar...@bentley.edu wrote: Is there a way to tell Creator to use make -j N for some N in all projects? I know that I can change it on a per-project basis, but since it's a value that's pretty much just contingent on how many cores my machine has, I'd like to just say please use all cores all the time. I couldn't find this in the options. Did I miss it or should I file a request for it? (Or I could set MAKEFLAGS=-j 4 in my environment, but I guess I'm not sure where Qt Creator gets its environment from in OS X, when launched from Finder rather than the command line...maybe from my bash .profile?? I have no idea.) Nathan ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator -- Eike Ziller Software Engineer Nokia, Qt Development Frameworks Nokia gate5 GmbH Firmensitz: Invalidenstr. 117, 10115 Berlin, Germany Registergericht: Amtsgericht Charlottenburg, Berlin: HRB 106443 B Umsatzsteueridentifikationsnummer: DE 812 845 193 Geschäftsführer: Dr. Michael Halbherr, Karim Tähtivuori ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] parallel processing in make
In Linux I just modify Additional arguments 2010/7/16 Carter, Nathan ncar...@bentley.edu Is there a way to tell Creator to use make -j N for some N in all projects? I know that I can change it on a per-project basis, but since it's a value that's pretty much just contingent on how many cores my machine has, I'd like to just say please use all cores all the time. I couldn't find this in the options. Did I miss it or should I file a request for it? (Or I could set MAKEFLAGS=-j 4 in my environment, but I guess I'm not sure where Qt Creator gets its environment from in OS X, when launched from Finder rather than the command line...maybe from my bash .profile?? I have no idea.) Nathan ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator -- Oleg Shalnev (Kalpa Project) -- mailto: o...@kalpa.ru skype: oleg_shalnev jabber: oleg.shal...@gmail.com http://kalpa.ru attachment: QtCreator.png___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] parallel processing in make
I used to do that but the setting is lost when the pro.user file is regenerated. Is there a way to set this in the .pro file? Doesn't make automatically use all available cores if the 'j' argument is not set? I'm sure I read that somewhere. On Fri, Jul 16, 2010 at 11:15 AM, Oleg Shalnev oleg.shal...@gmail.comwrote: In Linux I just modify Additional arguments 2010/7/16 Carter, Nathan ncar...@bentley.edu Is there a way to tell Creator to use make -j N for some N in all projects? I know that I can change it on a per-project basis, but since it's a value that's pretty much just contingent on how many cores my machine has, I'd like to just say please use all cores all the time. I couldn't find this in the options. Did I miss it or should I file a request for it? (Or I could set MAKEFLAGS=-j 4 in my environment, but I guess I'm not sure where Qt Creator gets its environment from in OS X, when launched from Finder rather than the command line...maybe from my bash .profile?? I have no idea.) Nathan ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator -- Oleg Shalnev (Kalpa Project) -- mailto: o...@kalpa.ru skype: oleg_shalnev jabber: oleg.shal...@gmail.com http://kalpa.ru ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] Class View in navigation pane (merge request #2167)
On 7/5/2010 10:56 PM, ext Denis Mingulov wrote: Hi, The most popular feature request for Qt Creator is 'Class View in navigation pane' ( http://bugreports.qt.nokia.com/browse/QTCREATORBUG-28 ) now. I created such plugin (with additional minor change in src/libs/cplusplus/Icons.h / .cpp - added possibility to get an icon id instead of QIcon - it is needed for work not in GUI thread and for faster sorting) and I sent a merge request: http://qt.gitorious.org/qt-creator/qt-creator/merge_requests/2167 Due to the summer (a lot of vacations) I do not think that the review will start before the middle of August (or even later). Actually you were faster ... the ClassView plugin just got merged into mainline, master branch! Thanks a lot Denis, this is really a great piece of code! Kai PS: I'm sure you can imagine how a class view looks like ... still, I'm attaching a screenshot to let the size of the e-mail reflect it's importance ;) -- Kai Koehne Software Engineer Nokia, Qt Development Frameworks Nokia gate5 GmbH Firmensitz: Invalidenstr. 117, 10115 Berlin, Germany Registergericht: Amtsgericht Charlottenburg, Berlin: HRB 106443 B Umsatzsteueridentifikationsnummer: DE 812 845 193 Geschäftsführer: Dr. Michael Halbherr, Karim Tähtivuori attachment: ClassView.PNG___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] parallel processing in make
I can't imagine why Creator couldn't guess at a default value anyway; just ask QThreadPool what the ideal number of threads is. :P Actually I can't imagine why make couldn't guess at a default value by checking the number of cores :P (Our little project ibjom, a replacement for nmake on Windows, does exactly that.) But isn't that what QThread::idealThreadCount() DOES? :P Doesn't make automatically use all available cores if the 'j' argument is not set? I'm sure I read that somewhere. No, without specifying an argument it runs as many parallel tasks as possible, limited only by dependency tracking. Good way to choke a system. Not a mistake I'll make twice. /s/ Adam ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
[Qt-creator] Debugging on qtcreator on master
Hi everybody, Since a few days I have problems when I debug my project. It's not possible anymore to inspect the variables (in fact sometime it work but some other times it doesn't). I created a small hello world project and it was working fine. My computer is an Ubuntu 8.04 x86_64 with gdb 6.8. I made a revert to the version a previous (c1d93f4a45bdb433f36654bcc71d55a1bf4ee4b5 Mon Jul 12) and it's working fine with this version. Sorry I am not able to give more informations but I found it important to point out there is a regression after the recent changes in the debugger. Also I observe an other minor bug. I my project I have include some python files. And it seems that these file are parsed by the C++ parser. Best regards, Laurent ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] parallel processing in make
On Fri, Jul 16, 2010 at 7:08 AM, Coda Highland c...@bobandgeorge.com wrote: I can't imagine why Creator couldn't guess at a default value anyway; just ask QThreadPool what the ideal number of threads is. :P Actually I can't imagine why make couldn't guess at a default value by checking the number of cores :P (Our little project ibjom, a replacement for nmake on Windows, does exactly that.) But isn't that what QThread::idealThreadCount() DOES? :P I see I misread what you said. No, actually, make probably can't do that. I've seen way too many projects that don't have the dependency tracking set up right that fail when parallel builds are in use, which is probably enough to make the GNU folks refuse to make the default behavior incompatible. /s/ Adam ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] parallel processing in make
On Jul 15, 2010, at 9:49 PM, Coda Highland wrote: I can't imagine why Creator couldn't guess at a default value anyway; just ask QThreadPool what the ideal number of threads is. :P Actually, if Creator can do it with QThreadPool, why can't qmake do it with QThreadPool? Then my Makefile would always have the right -j argument for the machine it was created on. On Jul 16, 2010, at 6:29 AM, Danny Price wrote: I used to do that but the setting is lost when the pro.user file is regenerated. Is there a way to set this in the .pro file? Yes, but even better, let's have it as the default behavior for qmake to choose a -j N argument for make, but you can override it if you'd rather not use all cores or something like that. Doesn't make automatically use all available cores if the 'j' argument is not set? I'm sure I read that somewhere. No, here's what I just tried on my 4-core system with one small/medium-sized Qt project: make clean ; time make Time: 1m10s Activity monitor showed: Two cores nearly unused the whole time Other two partially used the whole time (up+down) make clean ; time make -j 2 Time: 42s Activity monitor showed: Two cores only slightly (30%?) used the whole time Other two maxed out the whole time make clean ; time make -j 4 Time: 34s Activity monitor showed: All four cores maxed out the whole time So make does not guess correctly from the point of view of please finish as fast as possible. Nathan ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
[Qt-creator] Pre-built plugins for Qt Creator
Hi, I have been looking at the plugins at http://developer.qt.nokia.com/wiki/Qt_Creator_Plug-in_Gallery and have some interest in testing some of them out. Most of all CppHelper, which as far as I can see would plug a feature-hole in Qt Creator. What I have tried to figure out is if one has to build the plugins oneself, or if one can download a pre-built plugin from somewhere and just load it in qt- creator. I'm using the official 2.0 release of Qt Creator, installed from the .bin the Trolls prepared. Any input is appreciated. -- Christopher ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] parallel processing in make
Actually, I think he meant: j argument present but not set. Such as make -j. And yes, that should automagically use all available cores. On Fri, Jul 16, 2010 at 2:49 PM, Carter, Nathan ncar...@bentley.edu wrote: On Jul 15, 2010, at 9:49 PM, Coda Highland wrote: I can't imagine why Creator couldn't guess at a default value anyway; just ask QThreadPool what the ideal number of threads is. :P Actually, if Creator can do it with QThreadPool, why can't qmake do it with QThreadPool? Then my Makefile would always have the right -j argument for the machine it was created on. On Jul 16, 2010, at 6:29 AM, Danny Price wrote: I used to do that but the setting is lost when the pro.user file is regenerated. Is there a way to set this in the .pro file? Yes, but even better, let's have it as the default behavior for qmake to choose a -j N argument for make, but you can override it if you'd rather not use all cores or something like that. Doesn't make automatically use all available cores if the 'j' argument is not set? I'm sure I read that somewhere. No, here's what I just tried on my 4-core system with one small/medium-sized Qt project: make clean ; time make Time: 1m10s Activity monitor showed: Two cores nearly unused the whole time Other two partially used the whole time (up+down) make clean ; time make -j 2 Time: 42s Activity monitor showed: Two cores only slightly (30%?) used the whole time Other two maxed out the whole time make clean ; time make -j 4 Time: 34s Activity monitor showed: All four cores maxed out the whole time So make does not guess correctly from the point of view of please finish as fast as possible. Nathan ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator -- Aurélien Vallée +33 6 47 41 70 37 ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] parallel processing in make
Actually, if Creator can do it with QThreadPool, why can't qmake do it with QThreadPool? Then my Makefile would always have the right -j argument for the machine it was created on. Because you can't define the -j flag in the makefile itself; it's only recognized as an environment variable or as a command line parameter. Actually, I think he meant: j argument present but not set. Such as make -j. And yes, that should automagically use all available cores. As I described earlier, it simply does everything in parallel. It doesn't restrict how many processes it spawns, which for any sizable project means you're going to have dozens of compilers all at each others' throats. make -j is a bad idea and in my opinion shouldn't exist. /s/ Adam ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] parallel processing in make
Well then that would definitely be a problem for me, I start everything from spotlight! No, seriously, CMD+Space couple of letters Enter - BAM! =) Alan On Jul 15, 2010, at 11:12 PM, ext Kai Koehne wrote: On 7/16/2010 3:09 AM, ext Carter, Nathan wrote: Is there a way to tell Creator to use make -j N for some N in all projects? I know that I can change it on a per-project basis, but since it's a value that's pretty much just contingent on how many cores my machine has, I'd like to just say please use all cores all the time. I couldn't find this in the options. Did I miss it or should I file a request for it? (Or I could set MAKEFLAGS=-j 4 in my environment, but I guess I'm not sure where Qt Creator gets its environment from in OS X, when launched from Finder rather than the command line...maybe from my bash .profile?? I have no idea.) Google is your friend :) Setting them in ~/.MacOSX/environment.plist worked for me in the past (although I just learned that it might fail if you start QtCreator from Spotlight). I think this is really something you want to set system-wide / per user, and not somewhere inside QtCreator. Kai -- Kai Koehne Software Engineer Nokia, Qt Development Frameworks Nokia gate5 GmbH Firmensitz: Invalidenstr. 117, 10115 Berlin, Germany Registergericht: Amtsgericht Charlottenburg, Berlin: HRB 106443 B Umsatzsteueridentifikationsnummer: DE 812 845 193 Geschäftsführer: Dr. Michael Halbherr, Karim Tähtivuori ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
