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    Author Topic: [LOCKED] cpuminer-opt v3.12.3, open source optimized multi-algo CPU miner  (Read 444192 times)

    • Dead Things
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    March 03, 2018, 02:26:57 PM
     #3501
    Quote from: joblo on March 03, 2018, 06:11:36 AM
    Have you tried using ./build.sh? It's always best to use the recommended procedure first,
    at least before reporting problems.

    Unless you're using the legacy version (and you shouldn't with that CPU) you don't need CXXFLAGS.

    As for the errors, pthreadGC2 is linked for Windows cross compile, I don't know why it's trying to
    link it here. No one else has reported that problem and a lot of people use Ubuntu 16.04.
    It should be just pthread.

    Edit: I should note I didn't have to install anything special on Mint 18 (Ubuntu 16.04) for pthread.

    Yes - sorry, I should have mentioned that I tried build.sh first and it results in the same error, hence the attempt to take it step by step. I might try giving the drive another clean wipe and fresh install and try again then. Thanks for your reply!

  • monsim113
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    March 04, 2018, 03:00:54 AM
     #3502
    Hi, I use cpuminer-opt-3.8.3.3-windows with cpu e5 2680(win server 2k12 R2) for yescryptr16 . But speed is slower when set -t is higher. for example -t 1 (144h core), -t 4 (84h core) -t 10(36h core), who can help me ?
    With -t 4
    [2018-03-03 18:55:49] CPU #0: 438 H, 84.69 H/s
    [2018-03-03 18:55:49] CPU #3: 438 H, 84.69 H/s
    with -t 10
    [2018-03-03 18:59:03] CPU #6: 1101 H, 36.10 H/s
    [2018-03-03 18:59:03] CPU #7: 1101 H, 36.10 H/s
    [2018-03-03 18:59:03] CPU #3: 1112 H, 36.46 H/s
    [2018-03-03 18:59:03] CPU #4: 1102 H, 36.13 H/s
    [2018-03-03 18:59:03] CPU #8: 1102 H, 36.13 H/s
    [2018-03-03 18:59:03] CPU #1: 1101 H, 36.10 H/s
    [2018-03-03 18:59:03] CPU #9: 1101 H, 36.10 H/s
    [2018-03-03 18:59:03] CPU #5: 1102 H, 36.13 H/s
    [2018-03-03 18:59:03] CPU #0: 1101 H, 36.10 H/s
    [2018-03-03 18:59:03] CPU #2: 1110 H, 36.39 H/s

    Thanks

  • joblo (OP)
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    March 06, 2018, 05:12:35 PM
     #3503
    Attention users of Debian 8 Jessie.

    Two users have reported that cpuminer-opt no longer compiles under Debian 8 as of v3.8.1. A code change
    in that version introduced a SIMD instrinsic function that is not recognized by the Debain 8 compiler although
    it is valid for the CPU architecture. It compiles successfully in Debian 9.

    Debian 8 users are encouraged to upgrade to Debian 9 to take advantage of new optimizations avaiable in
    the latest release of cpuminer-opt.

    Further information:

    https://github.com/JayDDee/cpuminer-opt/issues/105
    https://github.com/JayDDee/cpuminer-opt/issues/84
    AKA JayDDee, cpuminer-opt developer. https://github.com/JayDDee/cpuminer-opt
    https://bt.irlbtc.com/view/5226770.msg53865575#msg53865575
    BTC: 12tdvfF7KmAsihBXQXynT6E6th2c2pByTT,

  • Gehacktesmacher
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    March 08, 2018, 11:10:32 PM
     #3504
    Hi.

    Got the same problem as "Dead Things", but on an 2x Intel Xeon E5645 using Ubuntu 16.04 LTS
    On systems with AVX I am using the precompiled linux version, but it is not possible to use this one on systems without AVX.

    Tried to compile, and ran into the same problems.

    Quote
    mv -f asm/.deps/cpuminer-aesb-x64.Tpo asm/.deps/cpuminer-aesb-x64.Po
    mv -f asm/.deps/cpuminer-scrypt-x64.Tpo asm/.deps/cpuminer-scrypt-x64.Po
    mv -f algo/yescrypt/.deps/cpuminer-sha256_Y.Tpo algo/yescrypt/.deps/cpuminer-sha256_Y.Po
    mv -f algo/yescrypt/.deps/cpuminer-yescrypt-simd.Tpo algo/yescrypt/.deps/cpuminer-yescrypt-simd.Po
    g++  -g -O2 -L/root/usr/lib -Lyes/lib  -L/root/usr/lib -Lyes/lib  -o cpuminer cpuminer-cpu-miner.o cpuminer-util.o cpuminer-uint256.o cpuminer-api.o cpuminer-sysinfos.o cpuminer-algo-gate-api.o crypto/cpuminer-oaes_lib.o crypto/cpuminer-c_keccak.o crypto/cpuminer-c_groestl.o crypto/cpuminer-c_blake256.o crypto/cpuminer-c_jh.o crypto/cpuminer-c_skein.o crypto/cpuminer-hash.o crypto/cpuminer-aesb.o crypto/cpuminer-magimath.o algo/argon2d/argon2d/cpuminer-opt.o algo/argon2d/argon2d/cpuminer-core.o algo/argon2d/argon2d/cpuminer-encoding.o algo/argon2d/argon2d/cpuminer-thread.o algo/argon2d/blake2/cpuminer-blake2b.o algo/argon2d/cpuminer-argon2d-crds-gate.o algo/argon2d/cpuminer-argon2d-dyn-gate.o algo/argon2d/argon2d/cpuminer-argon2.o algo/blake/cpuminer-sph_blake.o algo/blake/cpuminer-blake-hash-4way.o algo/blake/cpuminer-blake-gate.o algo/blake/cpuminer-blake.o algo/blake/cpuminer-blake-4way.o algo/blake/cpuminer-sph_blake2b.o algo/blake/cpuminer-blake2b.o algo/blake/cpuminer-sph-blake2s.o algo/blake/cpuminer-blake2s.o algo/blake/cpuminer-blakecoin-gate.o algo/blake/cpuminer-mod_blakecoin.o algo/blake/cpuminer-blakecoin.o algo/blake/cpuminer-blakecoin-4way.o algo/blake/cpuminer-decred-gate.o algo/blake/cpuminer-decred.o algo/blake/cpuminer-decred-4way.o algo/blake/cpuminer-pentablake-gate.o algo/blake/cpuminer-pentablake-4way.o algo/blake/cpuminer-pentablake.o algo/bmw/cpuminer-sph_bmw.o algo/bmw/cpuminer-bmw-hash-4way.o algo/bmw/cpuminer-bmw256.o algo/cryptonight/cpuminer-cryptolight.o algo/cryptonight/cpuminer-cryptonight-common.o algo/cryptonight/cpuminer-cryptonight-aesni.o algo/cryptonight/cpuminer-cryptonight.o algo/cubehash/cpuminer-sph_cubehash.o algo/cubehash/sse2/cpuminer-cubehash_sse2.o algo/echo/cpuminer-sph_echo.o algo/echo/aes_ni/cpuminer-hash.o algo/gost/cpuminer-sph_gost.o algo/groestl/cpuminer-sph_groestl.o algo/groestl/cpuminer-groestl.o algo/groestl/cpuminer-myrgr-gate.o algo/groestl/cpuminer-myrgr-4way.o algo/groestl/cpuminer-myr-groestl.o algo/groestl/aes_ni/cpuminer-hash-groestl.o algo/groestl/aes_ni/cpuminer-hash-groestl256.o algo/fugue/cpuminer-sph_fugue.o algo/hamsi/cpuminer-sph_hamsi.o algo/hamsi/cpuminer-hamsi-hash-4way.o algo/haval/cpuminer-haval.o algo/haval/cpuminer-haval-hash-4way.o algo/heavy/cpuminer-sph_hefty1.o algo/heavy/cpuminer-heavy.o algo/heavy/cpuminer-bastion.o algo/hodl/cpuminer-aes.o algo/hodl/cpuminer-hodl-gate.o algo/hodl/cpuminer-hodl-wolf.o algo/hodl/cpuminer-sha512_avx.o algo/hodl/cpuminer-sha512_avx2.o algo/jh/cpuminer-sph_jh.o algo/jh/cpuminer-jh-hash-4way.o algo/jh/cpuminer-jha-gate.o algo/jh/cpuminer-jha-4way.o algo/jh/cpuminer-jha.o algo/keccak/cpuminer-sph_keccak.o algo/keccak/cpuminer-keccak.o algo/keccak/cpuminer-keccak-hash-4way.o algo/keccak/cpuminer-keccak-4way.o algo/keccak/cpuminer-keccak-gate.o algo/keccak/sse2/cpuminer-keccak.o algo/luffa/cpuminer-sph_luffa.o algo/luffa/cpuminer-luffa.o algo/luffa/cpuminer-luffa_for_sse2.o algo/luffa/cpuminer-luffa-hash-2way.o algo/lyra2/cpuminer-lyra2.o algo/lyra2/cpuminer-sponge.o algo/lyra2/cpuminer-lyra2rev2-gate.o algo/lyra2/cpuminer-lyra2rev2.o algo/lyra2/cpuminer-lyra2rev2-4way.o algo/lyra2/cpuminer-lyra2re.o algo/lyra2/cpuminer-lyra2z-gate.o algo/lyra2/cpuminer-lyra2z.o algo/lyra2/cpuminer-lyra2z-4way.o algo/lyra2/cpuminer-lyra2z330.o algo/lyra2/cpuminer-lyra2h-gate.o algo/lyra2/cpuminer-lyra2h.o algo/lyra2/cpuminer-lyra2h-4way.o algo/lyra2/cpuminer-allium-gate.o algo/lyra2/cpuminer-allium-4way.o algo/lyra2/cpuminer-allium.o algo/cpuminer-m7m.o algo/neoscrypt/cpuminer-neoscrypt.o algo/nist5/cpuminer-nist5-gate.o algo/nist5/cpuminer-nist5-4way.o algo/nist5/cpuminer-nist5.o algo/nist5/cpuminer-zr5.o algo/cpuminer-pluck.o algo/quark/cpuminer-quark-gate.o algo/quark/cpuminer-quark.o algo/quark/cpuminer-quark-4way.o algo/quark/cpuminer-anime-gate.o algo/quark/cpuminer-anime.o algo/quark/cpuminer-anime-4way.o algo/qubit/cpuminer-qubit-gate.o algo/qubit/cpuminer-qubit.o algo/qubit/cpuminer-qubit-2way.o algo/qubit/cpuminer-deep-gate.o algo/qubit/cpuminer-deep-2way.o algo/qubit/cpuminer-deep.o algo/ripemd/cpuminer-sph_ripemd.o algo/ripemd/cpuminer-ripemd-hash-4way.o algo/ripemd/cpuminer-lbry-gate.o algo/ripemd/cpuminer-lbry.o algo/ripemd/cpuminer-lbry-4way.o algo/cpuminer-scrypt.o algo/scryptjane/cpuminer-scrypt-jane.o algo/sha/cpuminer-sph_sha2.o algo/sha/cpuminer-sph_sha2big.o algo/sha/cpuminer-sha2-hash-4way.o algo/sha/cpuminer-sha2.o algo/sha/cpuminer-sha256t.o algo/shabal/cpuminer-sph_shabal.o algo/shabal/cpuminer-shabal-hash-4way.o algo/shavite/cpuminer-sph_shavite.o algo/shavite/cpuminer-sph-shavite-aesni.o algo/shavite/cpuminer-shavite.o algo/simd/cpuminer-sph_simd.o algo/simd/cpuminer-nist.o algo/simd/cpuminer-vector.o algo/simd/cpuminer-simd-hash-2way.o algo/skein/cpuminer-sph_skein.o algo/skein/cpuminer-skein-hash-4way.o algo/skein/cpuminer-skein.o algo/skein/cpuminer-skein-4way.o algo/skein/cpuminer-skein-gate.o algo/skein/cpuminer-skein2.o algo/skein/cpuminer-skein2-4way.o algo/skein/cpuminer-skein2-gate.o algo/sm3/cpuminer-sm3.o algo/sm3/cpuminer-sm3-hash-4way.o algo/tiger/cpuminer-sph_tiger.o algo/whirlpool/cpuminer-sph_whirlpool.o algo/whirlpool/cpuminer-whirlpool-hash-4way.o algo/whirlpool/cpuminer-whirlpool-gate.o algo/whirlpool/cpuminer-whirlpool-4way.o algo/whirlpool/cpuminer-whirlpool.o algo/whirlpool/cpuminer-whirlpoolx.o algo/x11/cpuminer-x11-gate.o algo/x11/cpuminer-x11.o algo/x11/cpuminer-x11-4way.o algo/x11/cpuminer-x11gost-gate.o algo/x11/cpuminer-x11gost.o algo/x11/cpuminer-x11gost-4way.o algo/x11/cpuminer-c11-gate.o algo/x11/cpuminer-c11.o algo/x11/cpuminer-c11-4way.o algo/x11/cpuminer-tribus-gate.o algo/x11/cpuminer-tribus.o algo/x11/cpuminer-tribus-4way.o algo/x11/cpuminer-timetravel-gate.o algo/x11/cpuminer-timetravel.o algo/x11/cpuminer-timetravel-4way.o algo/x11/cpuminer-timetravel10-gate.o algo/x11/cpuminer-timetravel10.o algo/x11/cpuminer-timetravel10-4way.o algo/x11/cpuminer-fresh.o algo/x11/cpuminer-x11evo.o algo/x11/cpuminer-x11evo-4way.o algo/x11/cpuminer-x11evo-gate.o algo/x12/cpuminer-x12-gate.o algo/x12/cpuminer-x12.o algo/x12/cpuminer-x12-4way.o algo/x13/cpuminer-x13-gate.o algo/x13/cpuminer-x13.o algo/x13/cpuminer-x13-4way.o algo/x13/cpuminer-x13sm3-gate.o algo/x13/cpuminer-x13sm3.o algo/x13/cpuminer-x13sm3-4way.o algo/x13/cpuminer-phi1612-gate.o algo/x13/cpuminer-phi1612.o algo/x13/cpuminer-phi1612-4way.o algo/x13/cpuminer-skunk-gate.o algo/x13/cpuminer-skunk-4way.o algo/x13/cpuminer-skunk.o algo/x13/cpuminer-drop.o algo/x14/cpuminer-x14-gate.o algo/x14/cpuminer-x14.o algo/x14/cpuminer-x14-4way.o algo/x14/cpuminer-veltor-gate.o algo/x14/cpuminer-veltor.o algo/x14/cpuminer-veltor-4way.o algo/x14/cpuminer-polytimos-gate.o algo/x14/cpuminer-polytimos.o algo/x14/cpuminer-polytimos-4way.o algo/x14/cpuminer-axiom.o algo/x15/cpuminer-x15-gate.o algo/x15/cpuminer-x15.o algo/x15/cpuminer-x15-4way.o algo/x17/cpuminer-x17-gate.o algo/x17/cpuminer-x17.o algo/x17/cpuminer-x17-4way.o algo/x17/cpuminer-xevan-gate.o algo/x17/cpuminer-xevan.o algo/x17/cpuminer-xevan-4way.o algo/x17/cpuminer-x16r-gate.o algo/x17/cpuminer-x16r.o algo/x17/cpuminer-x16r-4way.o algo/x17/cpuminer-hmq1725.o algo/yescrypt/cpuminer-yescrypt.o algo/yescrypt/cpuminer-sha256_Y.o algo/yescrypt/cpuminer-yescrypt-simd.o asm/cpuminer-neoscrypt_asm.o  asm/cpuminer-sha2-x64.o asm/cpuminer-scrypt-x64.o asm/cpuminer-aesb-x64.o   -lcurl -lz -lssl -lcrypto -ljansson -lpthreadGC2  -lssl -lcrypto -lgmp
    /usr/bin/ld: cannot find -lpthreadGC2
    collect2: error: ld returned 1 exit status
    Makefile:1776: die Regel für Ziel „cpuminer“ scheiterte
    make[2]: *** [cpuminer] Fehler 1
    make[2]: Verzeichnis „/tmp/cpuminer-argon2d“ wird verlassen
    Makefile:5472: die Regel für Ziel „all-recursive“ scheiterte
    make[1]: *** [all-recursive] Fehler 1
    make[1]: Verzeichnis „/tmp/cpuminer-argon2d“ wird verlassen
    Makefile:876: die Regel für Ziel „all“ scheiterte
    make: *** [all] Fehler 2
    strip: ‚cpuminer‛: Keine solche Datei

    I read the last posts in this thread to find help, but found "Dead Things" who has the same issue :=)

  • joblo (OP)
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    March 09, 2018, 02:01:45 AM
     #3505
    Quote from: Gehacktesmacher on March 08, 2018, 11:10:32 PM
    Hi.

    Got the same problem as "Dead Things", but on an 2x Intel Xeon E5645 using Ubuntu 16.04 LTS
    On systems with AVX I am using the precompiled linux version, but it is not possible to use this one on systems without AVX.

    Tried to compile, and ran into the same problems.

    Quote
    /usr/bin/ld: cannot find -lpthreadGC2
    What precompiled Linux version? It didn't come from me.

    I built a Mint 17 (Ubuntu 16.04) system a week ago and have no problems compiling. I have no idea what's going wrong
    for you and Dead Things. It should only try to link pthreadGC2 when compiling using mingw for Windows.
    That's how I build the Windows binaries but when doing a normal build it links pthread as it should. The CPU shouldn't have
    any effect on this, it's the build environment. Something is making it believe it's compiling for Windows.
    Here is the code in configure.ac that controls it, it seems pretty clear:

    Code:
    if test "x$OS" = "xWindows_NT" ; then
       # MinGW
       AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
    else
       AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthread",[])
    fi
    AKA JayDDee, cpuminer-opt developer. https://github.com/JayDDee/cpuminer-opt
    https://bt.irlbtc.com/view/5226770.msg53865575#msg53865575
    BTC: 12tdvfF7KmAsihBXQXynT6E6th2c2pByTT,

  • Cebula
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    March 09, 2018, 05:06:57 PM
     #3506
    I hope I'm not repeating, but I'm not sure which miner to run. My CPU supports these instruction sets:

    MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, x86-64, AMD-V, AES, AVX, AVX2, FMA3, SHA

    Running on a Threadripper 1900X

  • scryptr
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    March 09, 2018, 05:34:04 PM
     #3507
    Quote from: Cebula on March 09, 2018, 05:06:57 PM
    I hope I'm not repeating, but I'm not sure which miner to run. My CPU supports these instruction sets:

    MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, x86-64, AMD-V, AES, AVX, AVX2, FMA3, SHA

    Running on a Threadripper 1900X

    THAT IS A GOOD QUESTION--

    After several pages of interesting bug catches, update notes, code reports, and technical data, I have lost track.  Most of my CPUs are slightly dated, and are still running v3.7.2.  Perhaps I should update and re-standardize on a newer version.       --scryptr
    SCRYPTR'S NOTEBOOK: https://bt.irlbtc.com/view/5035515.msg46035530#msg46035530
    GITHUB: "github.com/scryptr"  MERIT is appreciated, also.  Thanks!

  • sleepdog
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    March 09, 2018, 06:28:02 PM
     #3508
    Try them and see? Anything unsopported won't run and you could do a quick benchmark on the the rest.

  • joblo (OP)
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    March 09, 2018, 06:41:20 PM
     #3509
    Quote from: sleepdog on March 09, 2018, 06:28:02 PM
    Try them and see? Anything unsopported won't run and you could do a quick benchmark on the the rest.

    That's always a good fallback if you're completely lost. If README.txt isn't clear enough let me know.
    AKA JayDDee, cpuminer-opt developer. https://github.com/JayDDee/cpuminer-opt
    https://bt.irlbtc.com/view/5226770.msg53865575#msg53865575
    BTC: 12tdvfF7KmAsihBXQXynT6E6th2c2pByTT,

  • Cebula
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    March 09, 2018, 08:59:43 PM
     #3510
    Quote from: sleepdog on March 09, 2018, 06:28:02 PM
    Try them and see? Anything unsupported won't run and you could do a quick benchmark on the rest.

    I tried each of the programs and none crashed - which is good. Next question is how to do a benchmark.

  • drozenski
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    March 10, 2018, 11:20:38 AM
     #3511
    does this support the primcoin/datacoin algo?

    I cant seem to find it.

  • UspesenRudar
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    March 10, 2018, 01:30:09 PM
     #3512
    Quote from: Cebula on March 09, 2018, 08:59:43 PM
    Quote from: sleepdog on March 09, 2018, 06:28:02 PM
    Try them and see? Anything unsupported won't run and you could do a quick benchmark on the rest.

    I tried each of the programs and none crashed - which is good. Next question is how to do a benchmark.

    --benchmark parameter
    .exe --benchmark -a cryptonight

  • Gehacktesmacher
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    March 11, 2018, 10:51:34 PM
     #3513
    Quote
    if test "x$OS" = "xWindows_NT" ; then
       # MinGW
       AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
    else
       AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthread",[])
    fi


    Hi joblo,
    thx for this. It seems there is a bug in the Code Smiley

    Freshly downloaded the sources on another machine and gone through configure.ac
    My version shows as follows, which explains the problem we got. (I manually edited and corrected it, and it works fine now)
    Another thing is that I have to install libgmpv4-dev to meet another requirement, but after that cpuminer binary got compiled fine Cheesy

    if test "x$OS" = "xWindows_NT" ; then
       # MinGW
       AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
    else
       AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
    fi

  • joblo (OP)
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    March 12, 2018, 12:24:57 AM
     #3514
    Quote from: Gehacktesmacher on March 11, 2018, 10:51:34 PM
    Hi joblo,
    thx for this. It seems there is a bug in the Code Smiley

    Freshly downloaded the sources on another machine and gone through configure.ac
    My version shows as follows, which explains the problem we got. (I manually edited and corrected it, and it works fine now)
    Another thing is that I have to install libgmpv4-dev to meet another requirement, but after that cpuminer binary got compiled fine Cheesy

    if test "x$OS" = "xWindows_NT" ; then
       # MinGW
       AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
    else
       AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
    fi

    Where did you get the source code? That's not what's on my github.
    AKA JayDDee, cpuminer-opt developer. https://github.com/JayDDee/cpuminer-opt
    https://bt.irlbtc.com/view/5226770.msg53865575#msg53865575
    BTC: 12tdvfF7KmAsihBXQXynT6E6th2c2pByTT,

  • 4ward
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    March 12, 2018, 06:46:20 AM
     #3515
    Quote from: joblo on March 12, 2018, 12:24:57 AM
    Quote from: Gehacktesmacher on March 11, 2018, 10:51:34 PM
    Hi joblo,
    thx for this. It seems there is a bug in the Code Smiley

    Freshly downloaded the sources on another machine and gone through configure.ac
    My version shows as follows, which explains the problem we got. (I manually edited and corrected it, and it works fine now)
    Another thing is that I have to install libgmpv4-dev to meet another requirement, but after that cpuminer binary got compiled fine Cheesy

    if test "x$OS" = "xWindows_NT" ; then
       # MinGW
       AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
    else
       AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS="-lpthreadGC2",[])
    fi

    Where did you get the source code? That's not what's on my github.

    this is how it looks after running "winbuild-cross.sh"

    revert the file to original for "linux mode"
    "git checkout -- configure.ac"
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  • Kgonla
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    March 14, 2018, 05:19:15 PM
     #3516
    Could someone explain me this, please:

    I5-3340M
    YescryptR16
    cpuminer-sse2

    1 core
    175 H/S

    2 core
    core 0 102 H/S
    core 1 102 H/S

    3 core
    core 0 96 H/S
    core 1 96 H/S
    core 2 159 H/S !!!

    4 core
    core 0 94 H/S
    core 1 94 H/S
    core 2 94 H/S
    core 3 94 H/S

  • joblo (OP)
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    March 14, 2018, 07:41:27 PM
     #3517
    It's called Hyperthreading, google it.
    AKA JayDDee, cpuminer-opt developer. https://github.com/JayDDee/cpuminer-opt
    https://bt.irlbtc.com/view/5226770.msg53865575#msg53865575
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  • plexmen
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    March 14, 2018, 08:09:04 PM
     #3518
    Quote from: Kgonla on March 14, 2018, 05:19:15 PM
    Could someone explain me this, please:

    I5-3340M
    YescryptR16
    cpuminer-sse2

    1 core
    175 H/S

    2 core
    core 0 102 H/S
    core 1 102 H/S
    ...
    Quote from: joblo on March 14, 2018, 07:41:27 PM
    It's called Hyperthreading, google it.

    I belive it's calling TurboBoost... Maybe the YescryptR16 algo it's very sensitive to the cpu clock frequency and when only one core worked TurboBoost run this core on maximum clock frequency and slow down clock frequency when more core utilized.

  • joblo (OP)
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    March 14, 2018, 10:46:40 PM
     #3519
    Quote from: plexmen on March 14, 2018, 08:09:04 PM
    I belive it's calling TurboBoost... Maybe the YescryptR16 algo it's very sensitive to the cpu clock frequency and when only one core worked TurboBoost run this core on maximum clock frequency and slow down clock frequency when more core utilized.

    Please don't speculate. YescryptR16 is less sensitve to CPU clock because it's memory hard. Adding more
    CPU threads when memory bandwidth is saturated just causes CPU stalls. You also don't seem to
    understand turboboost either. Turboboost only varies the CPU clock by about 15% and all cores run at the
    same freq. Neither is the case with the data provided.
    AKA JayDDee, cpuminer-opt developer. https://github.com/JayDDee/cpuminer-opt
    https://bt.irlbtc.com/view/5226770.msg53865575#msg53865575
    BTC: 12tdvfF7KmAsihBXQXynT6E6th2c2pByTT,

  • Kgonla
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    March 15, 2018, 12:34:46 AM
     #3520
    Quote from: plexmen on March 14, 2018, 08:09:04 PM
    Quote from: Kgonla on March 14, 2018, 05:19:15 PM
    Could someone explain me this, please:

    I5-3340M
    YescryptR16
    cpuminer-sse2

    1 core
    175 H/S

    2 core
    core 0 102 H/S
    core 1 102 H/S
    ...
    Quote from: joblo on March 14, 2018, 07:41:27 PM
    It's called Hyperthreading, google it.

    I belive it's calling TurboBoost... Maybe the YescryptR16 algo it's very sensitive to the cpu clock frequency and when only one core worked TurboBoost run this core on maximum clock frequency and slow down clock frequency when more core utilized.

    This processor is 2.7 GHz base with 3.4 boost
    I understand that when using 1 core it is working at 3.4 & when using 2 i at 2.7

    What I don't understand is why when using 3 cores the 3st is giving much more hash rate than the others.
    I think I must learn more about HT Wink

    Thank you for your answers.
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