错误：“vbroadcasts”的后缀或操作数无效

Question

我试图通过pip install annoy在CentOS 6.5服务器上安装annoy，但出现以下错误。有什么想法吗？我在here中找到了VBROADCASTSS，但仍然不知道如何修复这些错误。在

gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/home/xxx/.pyenv/versions/2.7.10/include/python2.7 -c src/annoymodule.cc -o build/temp.linux-x86_64-2.7/src/annoymodule.o -O3 -march=native -ffast-math
cc1plus: warning: command line option '-Wstrict-prototypes' is valid for C/ObjC but not for C++
In file included from /home/xxx/.pyenv/versions/2.7.10/include/python2.7/Python.h:8:0,
                 from src/annoymodule.cc:16:
/home/xxx/.pyenv/versions/2.7.10/include/python2.7/pyconfig.h:1188:0: warning: "_POSIX_C_SOURCE" redefined
 #define _POSIX_C_SOURCE 200112L
 ^
In file included from /usr/include/stdio.h:28:0,
                 from src/annoylib.h:18,
                 from src/annoymodule.cc:15:
/usr/include/features.h:162:0: note: this is the location of the previous definition
 # define _POSIX_C_SOURCE 200809L
 ^
In file included from /home/xxx/.pyenv/versions/2.7.10/include/python2.7/Python.h:8:0,
                 from src/annoymodule.cc:16:
/home/xxx/.pyenv/versions/2.7.10/include/python2.7/pyconfig.h:1210:0: warning: "_XOPEN_SOURCE" redefined
 #define _XOPEN_SOURCE 600
 ^
In file included from /usr/include/stdio.h:28:0,
                 from src/annoylib.h:18,
                 from src/annoymodule.cc:15:
/usr/include/features.h:164:0: note: this is the location of the previous definition
 # define _XOPEN_SOURCE 700
 ^

/tmp/ccfNu0mQ.s: Assembler messages:
/tmp/ccfNu0mQ.s:21160: Error: suffix or operands invalid for `vbroadcastss'
/tmp/ccfNu0mQ.s:21163: Error: suffix or operands invalid for `vbroadcastss'
/tmp/ccfNu0mQ.s:21532: Error: suffix or operands invalid for `vbroadcastss'
/tmp/ccfNu0mQ.s:24347: Error: suffix or operands invalid for `vbroadcastss'
/tmp/ccfNu0mQ.s:24350: Error: suffix or operands invalid for `vbroadcastss'
/tmp/ccfNu0mQ.s:24718: Error: suffix or operands invalid for `vbroadcastss'
error: command 'gcc' failed with exit status 1

Answer 1

我使用gcc -march=native -Q help=target来比较几个Linux机器上的gcc设置。 我发现主要的区别是故障机器上的-march行是haswell，其他的是haswell 像core...。以下是来自其他服务器的相应输出：

CentOS release 6.5 (Final)--march=corei7-avx

CentOS Linux 7 (Core)--march=core-avx-i

Debian GNU/Linux 7 (wheezy)--march=core-avx2

我猜错误来自gcc使用的不同指令集。 在naugle的setup.py中，-march=native行中的-march=native意味着gcc将尝试检测处理器并自动为其设置适当的标志。 所以我将这个标志改为-march=corei7-avx，在setup.py中，错误消失了。在

如果您感兴趣，请参阅here中的-march以获取详细信息。在

更新

在与服务器管理员确认后，此错误是由于CentOS loader软件比服务器中新的Haswell CPU旧。安装最新版本的binutils包也可以解决此问题。在

Answer 2

您的binutils版本太旧，无法支持AVX/AVX2指令，在您的处理器上检测到这些指令可用。 您需要binutils 2.22或更新版本来支持AVX。在