Call for testing gmp-pi

[Dewni]

Tested it on another box: Ubuntu 9.04 64bit on Intel Core2 6320@stock 1.86Ghz and I ran into the same problem as Aradreth:

Try to setup GMP for Intel Core2 or Xeon, wait....
: 175: Yes: unexpected operator
Did not detect Intel Core 2 CPU.  Patch not installed
Checking build system type... core2-unknown-linux-gnu
Checking host system type... core2-unknown-linux-gnu
Checking for a BSD-compatible install... /usr/bin/install -c

The patch (gmp-4.2.x-core2-port.tar.gz) is downloaded alright. The program correctly detects 2 CPUs and runs them up to 100% each.

It seems that there is something in the install_gmp_4.2.x_core2_patch.sh script going wrong, since that doesn't detect the CPU correctly. I think it's in the tmp_is_core2_cpu.c, but I'm not very skilled at reading C. Compiling that code gives me:

gcc -m64 tmp_is_core2_cpu.c -o tmp_is_core2_cpu -v
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.3.3-5ubuntu4' --with-bugurl=file:///usr/share/doc/gcc-4.3/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.3 --program-suffix=-4.3 --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-mpfr --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) 
COLLECT_GCC_OPTIONS='-m64' '-o' 'tmp_is_core2_cpu' '-v' '-mtune=generic'
 /usr/lib/gcc/x86_64-linux-gnu/4.3.3/cc1 -quiet -v tmp_is_core2_cpu.c -D_FORTIFY_SOURCE=2 -quiet -dumpbase tmp_is_core2_cpu.c -m64 -mtune=generic -auxbase tmp_is_core2_cpu -version -fstack-protector -o /tmp/ccZoYZJD.s
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../x86_64-linux-gnu/include"
ignoring nonexistent directory "/usr/include/x86_64-linux-gnu"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /usr/lib/gcc/x86_64-linux-gnu/4.3.3/include
 /usr/lib/gcc/x86_64-linux-gnu/4.3.3/include-fixed
 /usr/include
End of search list.
GNU C (Ubuntu 4.3.3-5ubuntu4) version 4.3.3 (x86_64-linux-gnu)
	compiled by GNU C version 4.3.3, GMP version 4.2.4, MPFR version 2.4.0.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 67d7a81bea2b3850275b5f3aed53a5bf
COLLECT_GCC_OPTIONS='-m64' '-o' 'tmp_is_core2_cpu' '-v' '-mtune=generic'
 as -V -Qy --64 -o /tmp/ccgs7G4d.o /tmp/ccZoYZJD.s
GNU assembler version 2.19.1 (x86_64-linux-gnu) using BFD version (GNU Binutils for Ubuntu) 2.19.1
COMPILER_PATH=/usr/lib/gcc/x86_64-linux-gnu/4.3.3/:/usr/lib/gcc/x86_64-linux-gnu/4.3.3/:/usr/lib/gcc/x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/4.3.3/:/usr/lib/gcc/x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/4.3.3/:/usr/lib/gcc/x86_64-linux-gnu/
LIBRARY_PATH=/usr/lib/gcc/x86_64-linux-gnu/4.3.3/:/usr/lib/gcc/x86_64-linux-gnu/4.3.3/:/usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../lib/:/lib/../lib/:/usr/lib/../lib/:/usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-m64' '-o' 'tmp_is_core2_cpu' '-v' '-mtune=generic'
 /usr/lib/gcc/x86_64-linux-gnu/4.3.3/collect2 --eh-frame-hdr -m elf_x86_64 --hash-style=both -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o tmp_is_core2_cpu -z relro /usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../lib/crt1.o /usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../lib/crti.o /usr/lib/gcc/x86_64-linux-gnu/4.3.3/crtbegin.o -L/usr/lib/gcc/x86_64-linux-gnu/4.3.3 -L/usr/lib/gcc/x86_64-linux-gnu/4.3.3 -L/usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../lib -L/lib/../lib -L/usr/lib/../lib -L/usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../.. /tmp/ccgs7G4d.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/lib/gcc/x86_64-linux-gnu/4.3.3/crtend.o /usr/lib/gcc/x86_64-linux-gnu/4.3.3/../../../../lib/crtn.o

Anything odd in there?

[Dewni]

SOLVED: Core2 not correctly identified on Ubuntu

I did some more digging: In the 'install_gmp_4.2.x_core2_patch.sh' script, the 'tmp_is_core2.c' is properly identifying the core2 processor, meaning that IS_CORE2_CPU is set to 'Yes' in my case. The script fails here:

123: if [ $IS_CORE2_CPU == "Yes" ]; then
124:    echo "Detected Intel Core 2 CPU"

The conditional fails on Ubuntu because Ubuntu has dash aliased to /bin/sh, not bash

Further more looks like it's a bug in their script, based on the (technically) incorrect but usually safe assumption that /bin/sh is just an alias of bash, Ubuntu is one of two distributions (ubuntu and debian) that use the more sh compliant dash by default. You could edit the first line from:

#!/bin/sh

to

#!/bin/bash

That indeed works. Changing that in install_gmp_4.2.x_core2_patch.sh gives:

Detected Intel Core 2 CPU
Found GMP at /home/mhb/software/gmp-pi/gmp-4.2.2
Version 4.2.x of GMP found.
Copying patch files:
amd64call.asm     --> /home/mhb/software/gmp-pi/gmp-4.2.2/tests
lahf_sahf_test.sh --> /home/mhb/software/gmp-pi/gmp-4.2.2/mpn/x86_64
add_n.asm         --> /home/mhb/software/gmp-pi/gmp-4.2.2/mpn/x86_64
sub_n.asm         --> /home/mhb/software/gmp-pi/gmp-4.2.2/mpn/x86_64
addmul_1.asm      --> /home/mhb/software/gmp-pi/gmp-4.2.2/mpn/x86_64
submul_1.asm      --> /home/mhb/software/gmp-pi/gmp-4.2.2/mpn/x86_64
mul_1.asm         --> /home/mhb/software/gmp-pi/gmp-4.2.2/mpn/x86_64

And for time differences:
Ubuntu 9.04 64bit Intel Core2 6320 @ 1.86Ghz

without optimizations: Time: 833.346 sec
with optimizations:Time: 553.875 (+/-) 12.8 sec

Considerable optimization, I'd say.

bash install.sh
Optimizing and Compiling GMP
Compiling gmp-chudnovsky
mt-bbp.c: In function ?thread_func?:
mt-bbp.c:115: warning: unknown conversion type character ?(? in format
mt-bbp.c:115: warning: format ?%d? expects type ?int?, but argument 5 has type ?time_t?
Cleaning up...
Finished

Aradreth, could you confirm that changing

16: # run patch
17: cd gmp-4.2.x-core2-port
18: ./install_gmp_4.2.x_core2_patch.sh ../gmp-4.2.2

to

16: # run patch
17: cd gmp-4.2.x-core2-port
18: bash ./install_gmp_4.2.x_core2_patch.sh ../gmp-4.2.2

correctly identifies your CPU now?

[Kano]

@Dewni

Debian does not use dash as sh, but most scripts are prepared for that. You could try this, which fixes some major bashisms:

sed -i 's/==/=/;s/pushd/cd/;s/popd//;s/echo\s\+-e/printf "%b\n"/' problematic-script

[tball]

Hmm it doesn't detect my c2d with arch 64 bit.

CPU is Intel(R)
Try to setup GMP for Intel Core2 or Xeon, wait....
Did not detect Intel Core 2 CPU.  Patch not installed
checking build system type... pentium3-unknown-linux-gnu
checking host system type... pentium3-unknown-linux-gn

And the script already have the #!/bin/bash statement.

EDIT:
Actually its when their script is trying to compile tmp_is_core2_cpu.c in line 113. When it never creates a tmp_is_core2_cpu file, the script doesn't think I got a c2d.

Tried to compile the sourcecode myself, and get this:

$ gcc -m64 tmp_is_core2_cpu.c -o tmp_is_core2_cpu
/tmp/cc60oGZn.o:(.eh_frame+0x12): undefined reference to `__gxx_personality_v0'
collect2: ld returned endingcode 1

I am using gcc version 4.4.0?

EDIT2:

Okay I got it to compile, but now the compiled tmp_is_core2_cpu doesn't think I got a core2duo either :P

$ ./tmp_is_core2_cpu
No

Wtf? :|

[Aradreth]

Aradreth, could you confirm that changing

16: # run patch
17: cd gmp-4.2.x-core2-port
18: ./install_gmp_4.2.x_core2_patch.sh ../gmp-4.2.2

to

16: # run patch
17: cd gmp-4.2.x-core2-port
18: bash ./install_gmp_4.2.x_core2_patch.sh ../gmp-4.2.2

correctly identifies your CPU now?

Archlinux links sh to bash, so there would be no change.

[zhuqin]

http://h2np.net/pi/pi_quick_start.tar.gz

Has anyone tried this? It's now updated for gmp 4.3.0.