Win32 multi-core BMK (NG) Testing
BlitzMax Modules Forums/Brucey's Modules/Win32 multi-core BMK (NG) Testing
| ||
| I was going to post this in the BlitzMax Programming forum, but given it's chance of blowing up, I thought it better to post here - out of the way :-p This download consists of a Win32 bmk.exe, and two .bmk scripts. Get it here : bmk_win32mt_test.zip (168kb) Drop all 3 files into your BlitzMax/bin folder. Please backup your bmk.exe before trying this - because you know it makes sense! This particular bmk has been built with "multi-core" support for compiling C/C++ files. This means that it will kick off several compiles at the same time, scaling with the number of cores on your system + 1. So, if you have 1 core, it will attempt to build 2 C/C++ files at the same time... 2 cores, 3 files... etc. You will only see an improvement in compile times on projects (modules/apps) where there are more than 2 or 3 C/C++ files. Otherwise, it should generally take the same amount of time as before. Assuming of course you see any improvement on Windows... it works great on OS X and Linux :-) For timing, I'm not sure the best way to benchmark on Windows. On a *nix box, you can do this : time ./bmk makemods -a bah.libxml which times the process and gives you an answer like this at the end : real 1m11.322s user 1m19.913s sys 0m6.309s which is nice :-) Anyway... if anything, it should "just work" like the current version. Thanks in advance for your assistance! |
| ||
I don't know if it's just me but I get (XP)Building untitled1 Compiling:untitled1.bmx flat assembler version 1.67.36 (1572863 kilobytes memory) 3 passes, 831 bytes. Linking:untitled1.mt.exe C:/Program Files/BlitzMax/lib/libgcc.a(__main.o): undefined reference to `__EH_FRAME_BEGIN__' C:/Program Files/BlitzMax/lib/libgcc.a(__main.o): undefined reference to `__EH_FRAME_BEGIN__' Build Error: Failed to link C:/Program Files/BlitzMax/tmp/untitled1.mt.exe Process complete When I try to build this: SuperStrict Framework BRL.Blitz Import BRL.System Import BRL.Standardio Local start_time:Int = MilliSecs() system_ "C:\Program Files\BlitzMax\Bin\bmk makemods -a bah.libxml" Print MilliSecs() - start_time End The error goes away when I revert to the BRL bmk |
| ||
| Ah... I see what's up. When linking "-lmingw32", on a native windows build it needs to be in a different order. For cross-compiling, I found it had to be at the end of the list (of libs). But on native, it needs to be nearer the front (of the list). Pah! You'll need to wait til I can get home and fix the code... Curiously, why are you building your exe with mt enabled? :-p |
| ||
| Oh right - I got the error without mt, so I tried again with mt in the ludicrous hope it might make a difference. |
| ||
| Heh :-) Interestingly, for a native Windows build using GCC 4.x (rather than 3.4.5 which we currently use), the "-lmingw32" lib also needs to be at the end of the list (of libs). All this keeps me on my toes, I suppose.. :-) |
| ||
| Updated. Hopefully that will fix the build when running on native Windows using gcc 3.4.5... |
| ||
| Average of 3 compiles (Intel Core 2 2.16 Ghz, XP) BRL: 60,183 Brucey: 34,080 Which makes Brucey... the winner :-) |
| ||
Uh oh... this is building my app.Linking:Mandala.debug.exe C:/Program Files/BlitzMax/lib/libstdc++.a(eh_alloc.o):eh_alloc.cc:(.text+0xb1): undefined reference to `_CRT_MT' C:/Program Files/BlitzMax/lib/libstdc++.a(eh_alloc.o):eh_alloc.cc:(.text+0xde): undefined reference to `_CRT_MT' C:/Program Files/BlitzMax/lib/libstdc++.a(eh_alloc.o):eh_alloc.cc:(.text+0x13e): undefined reference to `_CRT_MT' C:/Program Files/BlitzMax/lib/libstdc++.a(eh_alloc.o):eh_alloc.cc:(.text+0x205): undefined reference to `_CRT_MT' C:/Program Files/BlitzMax/lib/libstdc++.a(eh_alloc.o):eh_alloc.cc:(.text+0x21f): undefined reference to `_CRT_MT' C:/Program Files/BlitzMax/lib/libstdc++.a(eh_globals.o):eh_globals.cc:(.text+0x43): undefined reference to `__mingwthr_key_dtor' C:/Program Files/BlitzMax/lib/libstdc++.a(eh_globals.o):eh_globals.cc:(.text+0x222): undefined reference to `_CRT_MT' C:/Program Files/BlitzMax/lib/libgcc.a(unwind-sjlj.o): undefined reference to `__mingwthr_key_dtor' C:/Program Files/BlitzMax/lib/libgcc.a(unwind-sjlj.o): undefined reference to `_CRT_MT' C:/Program Files/BlitzMax/lib/libgcc.a(gthr-win32.o): undefined reference to `__mingwthr_key_dtor' Build Error: Failed to link C:/Code/Amorillo/Mandala.debug.exe |
| ||
| Oops... sorry about that. Rather than checking the original BMK for the correct place in the list of libs, I moved it too far forward... :-p Should be fixed now. Talk about finicky ! 34 seconds for ... ? |
| ||
| 34 seconds for... system_ "C:\Program Files\BlitzMax\Bin\bmk makemods -a bah.libxml |
| ||
| Should be fixed now. Yes it works now thanks Brucey. |
| ||
third time lucky...BRL: 60,183 Brucey: 34,080 Win32 should be a wee bit more efficient, because it doesn't seem to mind calling multiple system_() in different threads - whereas the other platforms do - so I have to fork() Mac and Linux to avoid that issue, which has an overhead. Still... better than nothing ;-) |
| ||
| Just got around to trying this -- definitely makes a substantial improvement. bmk makemods -a bah.libxml with the original bmk.exe: 62 seconds with the modified bmk.exe: 37 seconds Under Vista64 on a Core 2 Duo E6600 (2.4GHz) |
| ||
| My new Core i7 loves your modifications. Again... well done! |
| ||
I have a similar error as DavidDC:$ bmk makeapp -l win32 -r -a roper.bmx Compiling:roper.bmx flat assembler version 1.67.36 (1296977 kilobytes memory) 4 passes, 80770 bytes. Linking:roper.exe /home/tim/blitzmax/lib/libgcc.a(__main.o):(.text+0x4f): undefined reference to `__EH_FRAME_BEGIN__' /home/tim/blitzmax/lib/libgcc.a(__main.o):(.text+0x73): undefined reference to `__EH_FRAME_BEGIN__' Build Error: Failed to link /media/data/struct/code/lang/bmax/projects/apc/komiga.assoc/roper/roper.exe ..But this is using Linux -> Windows compiled modules. |
| ||
| I had this at one point too, but just had to rebuild all modules, making sure I was rebuilding the platform I wanted. I may also have scrubbed all the compiled .i, .a, etc files too just to make sure. |
| ||
| The undefined reference problem is because of a difference of linking requirements between the cross-compiling toolchain and the native Windows MinGW. The placement of libmingw in the link order appears to be important, so bmk needs to insert it into the correct place depending on whether you are native or cross compiling... I'm going to release the source shortly, so you can all tinker with it if you want. |