Jeff, The error happens during the configure step before compiling. However, I ran the make command as you indicated and I'm attaching the output to this email.
Thanks! Jeff
Can you send the output of "make V=1"? That will show the exact command line that is being used to build that file.On May 29, 2015, at 2:17 PM, Jeff Layton <layto...@att.net> wrote: George, I changed my configure command to be: ./configure CCASFLAGS=-march=native and I get an error while running configure: ... *** Assembler checking dependency style of gcc -std=gnu99... gcc3 checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B checking the name lister (/usr/bin/nm -B) interface... BSD nm checking for fgrep... /bin/grep -F checking if need to remove -g from CCASFLAGS... no checking whether to enable smp locks... yes checking if .proc/endp is needed... no checking directive for setting text section... .text checking directive for exporting symbols... .globl checking for objdump... objdump checking if .note.GNU-stack is needed... yes checking suffix for labels... : checking prefix for global symbol labels... none configure: error: Could not determine global symbol label prefix Not sure why configure failed at this point. Thanks! JeffAs you are not cross-compiling I would expect gcc to use the right assembly by default. What is happening is you force the native mode (-march=native) ? George. On Fri, May 29, 2015 at 10:09 AM, Jeff Layton <layto...@att.net> wrote: On 05/29/2015 09:35 AM, Jeff Layton wrote:Gilles, oops - yes, CFLAGS. But I also saw this posting: https://www.open-mpi.org/community/lists/users/2013/01/21111.php where CCASFLAGS is used (I assume because for asm). I'm trying this flag when I configure Open MPI.I tried using the CCASFLAGS flag from the above link and it didn't work. The error now reads: Making all in mca/memory/linux make[2]: Entering directory '/work/pi/src/openmpi-1.8.5/opal/mca/memory/linux' CC memory_linux_component.lo CC memory_linux_ptmalloc2.lo CC memory_linux_munmap.lo CC malloc.lo /tmp/cc7g4mWi.s: Assembler messages: /tmp/cc7g4mWi.s:948: Error: selected processor does not support ARM mode `dmb' Makefile:1694: recipe for target 'malloc.lo' failed make[2]: *** [malloc.lo] Error 1 make[2]: Leaving directory '/work/pi/src/openmpi-1.8.5/opal/mca/memory/linux' Makefile:2149: recipe for target 'all-recursive' failed make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory '/work/pi/src/openmpi-1.8.5/opal' Makefile:1698: recipe for target 'all-recursive' failed make: *** [all-recursive] Error 1 I used the configure flag CCASFLAGS=-march=armv7-a Not sure if that is correct or not. I'm guessing I'm using the wrong architecture for the Pi 2. Suggestions? Thanks! JeffThanks! JeffJeff, shall I assume you made a typo and wrote CCFLAGS instead of CFLAGS ? also, can you double check the flags are correctly passed to the assembler with cd opal/asm make -n atomic-asm.lo Cheers, Gilles On Friday, May 29, 2015, Jeff Layton <layto...@att.net> wrote: Good morning, I'm building OpenMPI from source on a Raspberry Pi 2 and I've hit an error. The error is: make[2]: Entering directory '/work/pi/src/openmpi-1.8.5/opal/asm' CPPAS atomic-asm.lo atomic-asm.S: Assembler messages: atomic-asm.S:7: Error: selected processor does not support ARM mode `dmb' atomic-asm.S:15: Error: selected processor does not support ARM mode `dmb' atomic-asm.S:23: Error: selected processor does not support ARM mode `dmb' atomic-asm.S:55: Error: selected processor does not support ARM mode `dmb' atomic-asm.S:70: Error: selected processor does not support ARM mode `dmb' atomic-asm.S:86: Error: selected processor does not support ARM mode `ldrexd r4,r5,[r0]' atomic-asm.S:91: Error: selected processor does not support ARM mode `strexd r1,r6,r7,[r0]' atomic-asm.S:107: Error: selected processor does not support ARM mode `ldrexd r4,r5,[r0]' atomic-asm.S:112: Error: selected processor does not support ARM mode `strexd r1,r6,r7,[r0]' atomic-asm.S:115: Error: selected processor does not support ARM mode `dmb' atomic-asm.S:130: Error: selected processor does not support ARM mode `ldrexd r4,r5,[r0]' atomic-asm.S:135: Error: selected processor does not support ARM mode `dmb' atomic-asm.S:136: Error: selected processor does not support ARM mode `strexd r1,r6,r7,[r0]' Makefile:1608: recipe for target 'atomic-asm.lo' failed make[2]: *** [atomic-asm.lo] Error 1 make[2]: Leaving directory '/work/pi/src/openmpi-1.8.5/opal/asm' Makefile:2149: recipe for target 'all-recursive' failed make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory '/work/pi/src/openmpi-1.8.5/opal' Makefile:1698: recipe for target 'all-recursive' failed make: *** [all-recursive] Error 1 I was doing some googling and I saw where I need to specify CCFLAGS when I run configure but I want to make 100% sure I have the right arguments. Can anyone help? Thanks! Jeff P.S. I'd rather build OpenMPI from source rather than use the pre-built packages in the Raspbian repository._______________________________________________ users mailing list us...@open-mpi.org Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users Link to this post: http://www.open-mpi.org/community/lists/users/2015/05/26987.php
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