solo mining on single card & basic multi-GPU support

README.md

@@ -1,4 +1,4 @@
-Zcash 1.0.0
+Zcash 1.0.0 (This is not up to date with zcash master)
 ===========
 
 What is Zcash?

configure.ac

@@ -152,7 +152,7 @@ AC_ARG_ENABLE([glibc-back-compat],
 
 AC_ARG_WITH([protoc-bindir],[AS_HELP_STRING([--with-protoc-bindir=BIN_DIR],[specify protoc bin path])], [protoc_bin_path=$withval], [])
 
-# Enable debug 
+# Enable debug
 AC_ARG_ENABLE([debug],
     [AS_HELP_STRING([--enable-debug],
                     [use debug compiler flags and macros (default is no)])],
@@ -163,11 +163,11 @@ if test "x$enable_debug" = xyes; then
     if test "x$GCC" = xyes; then
         CFLAGS="-g3 -O0 -DDEBUG"
     fi
-    
+
     if test "x$GXX" = xyes; then
         CXXFLAGS="-g3 -O0 -DDEBUG"
     fi
-fi 
+fi
 
 ## TODO: Remove these hard-coded paths and flags. They are here for the sake of
 ##       compatibility with the legacy buildsystem.
@@ -731,6 +731,7 @@ AC_CHECK_HEADER([libsnark/gadgetlib1/gadget.hpp],,AC_MSG_ERROR(libsnark headers
 AC_CHECK_LIB([snark],[main],LIBSNARK_LIBS=-lsnark, [AC_MSG_ERROR(libsnark missing)], [-lgmpxx])
 
 LIBZCASH_LIBS="-lsnark -lgmp -lgmpxx -lboost_system-mt -lcrypto -lsodium -fopenmp"
+LIBGPUSOLVER_LIBS="-lOpenCL"
 
 CXXFLAGS_TEMP="$CXXFLAGS"
 LIBS_TEMP="$LIBS"
@@ -917,6 +918,8 @@ AC_SUBST(GMP_LIBS)
 AC_SUBST(GMPXX_LIBS)
 AC_SUBST(LIBSNARK_LIBS)
 AC_SUBST(LIBZCASH_LIBS)
+AC_SUBST(LIBGPUSOLVER_LIBS)
+
 AC_CONFIG_FILES([Makefile src/Makefile share/setup.nsi share/qt/Info.plist src/test/buildenv.py])
 AC_CONFIG_FILES([qa/pull-tester/run-bitcoind-for-test.sh],[chmod +x qa/pull-tester/run-bitcoind-for-test.sh])
 AC_CONFIG_FILES([qa/pull-tester/tests-config.sh],[chmod +x qa/pull-tester/tests-config.sh])

src/Makefile.am

@@ -32,6 +32,7 @@ LIBBITCOIN_UNIVALUE=univalue/libbitcoin_univalue.a
 LIBBITCOINQT=qt/libbitcoinqt.a
 LIBSECP256K1=secp256k1/libsecp256k1.la
 LIBZCASH=libzcash.a
+LIBGPUSOLVER=libgpusolver.a
 
 $(LIBSECP256K1): $(wildcard secp256k1/src/*) $(wildcard secp256k1/include/*)
 	$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F)
@@ -45,7 +46,9 @@ EXTRA_LIBRARIES = \
   univalue/libbitcoin_univalue.a \
   libbitcoin_server.a \
   libbitcoin_cli.a \
-  libzcash.a
+  libzcash.a \
+	libgpusolver.a
+
 if ENABLE_WALLET
 BITCOIN_INCLUDES += $(BDB_CPPFLAGS)
 EXTRA_LIBRARIES += libbitcoin_wallet.a
@@ -80,6 +83,15 @@ LIBZCASH_H = \
   zcash/util.h \
   zcash/Zcash.h
 
+LIBGPUSOLVER_H = \
+  libgpusolver/libgpusolver.h \
+  libgpusolver/gpuconfig.h \
+  libgpusolver/kernels/silentarmy.h \
+  libgpusolver/libclwrapper.h \
+  libgpusolver/cl.hpp \
+  libgpusolver/blake.h \
+  libgpusolver/param.h
+
 .PHONY: FORCE check-symbols check-security
 # bitcoin core #
 BITCOIN_CORE_H = \
@@ -226,7 +238,8 @@ libbitcoin_server_a_SOURCES = \
   validationinterface.cpp \
   $(JSON_H) \
   $(BITCOIN_CORE_H) \
-  $(LIBZCASH_H)
+  $(LIBZCASH_H) \
+	$(LIBGPUSOLVER_H)
 
 # wallet: shared between bitcoind and bitcoin-qt, but only linked
 # when wallet enabled
@@ -364,7 +377,8 @@ zcashd_LDADD = \
   $(LIBZCASH) \
   $(LIBLEVELDB) \
   $(LIBMEMENV) \
-  $(LIBSECP256K1)
+  $(LIBSECP256K1) \
+  $(LIBGPUSOLVER)
 
 if ENABLE_WALLET
 zcashd_LDADD += libbitcoin_wallet.a
@@ -378,7 +392,9 @@ zcashd_LDADD += \
   $(MINIUPNPC_LIBS) \
   $(LIBZCASH) \
   $(LIBBITCOIN_CRYPTO) \
-  $(LIBZCASH_LIBS)
+  $(LIBZCASH_LIBS) \
+	$(LIBGPUSOLVER) \
+	$(LIBGPUSOLVER_LIBS)
 #
 
 # bitcoin-cli binary #
@@ -448,6 +464,20 @@ libzcash_a_LDFLAGS = $(HARDENED_LDFLAGS)
 
 libzcash_a_CPPFLAGS += -DMONTGOMERY_OUTPUT
 
+libgpusolver_a_SOURCES = \
+  libgpusolver/libgpusolver.cpp \
+  libgpusolver/libclwrapper.cpp \
+  libgpusolver/blake.cpp
+
+libgpusolver_a_CPPFLAGS = -DMULTICORE -fopenmp -fPIC -DBINARY_OUTPUT -DCURVE_ALT_BN128 -DBOOST_SPIRIT_THREADSAFE -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS $(HARDENED_CPPFLAGS) -pipe -O1 -g -Wstack-protector -fstack-protector-all -fPIE -fvisibility=hidden
+
+libgpusolver_a_CXXFLAGS = $(HARDENED_CXXFLAGS) -fwrapv -fno-strict-aliasing
+
+libgpusolver_a_LDFLAGS = $(HARDENED_LDFLAGS) -lOpenCL
+
+libgpusolver_a_CPPFLAGS += -DMONTGOMERY_OUTPUT
+
+
 # zcashconsensus library #
 if BUILD_BITCOIN_LIBS
 include_HEADERS = script/zcashconsensus.h

src/Makefile.gtest.include

@@ -36,7 +36,7 @@ if ENABLE_WALLET
 zcash_gtest_LDADD += $(LIBBITCOIN_WALLET)
 endif
 
-zcash_gtest_LDADD += $(LIBZCASH_CONSENSUS) $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS) $(MINIUPNPC_LIBS) $(LIBZCASH) $(LIBZCASH_LIBS)
+zcash_gtest_LDADD += $(LIBZCASH_CONSENSUS) $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS) $(MINIUPNPC_LIBS) $(LIBZCASH) $(LIBZCASH_LIBS) $(LIBGPUSOLVER) $(LIBGPUSOLVER_LIBS)
 
 zcash_gtest_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) -static
 

src/Makefile.test.include

@@ -103,7 +103,7 @@ if ENABLE_WALLET
 test_test_bitcoin_LDADD += $(LIBBITCOIN_WALLET)
 endif
 
-test_test_bitcoin_LDADD += $(LIBZCASH_CONSENSUS) $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS) $(MINIUPNPC_LIBS) $(LIBZCASH) $(LIBZCASH_LIBS)
+test_test_bitcoin_LDADD += $(LIBZCASH_CONSENSUS) $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS) $(MINIUPNPC_LIBS) $(LIBZCASH) $(LIBZCASH_LIBS) $(LIBGPUSOLVER) $(LIBGPUSOLVER_LIBS) $(LIBGPUSOLVER) $(LIBGPUSOLVER_LIBS)
 test_test_bitcoin_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) -static
 
 nodist_test_test_bitcoin_SOURCES = $(GENERATED_TEST_FILES)

src/Makefile.zcash.include

@@ -1,5 +1,5 @@
 bin_PROGRAMS += \
-  zcash/GenerateParams 
+  zcash/GenerateParams
 
 # tool for generating our public parameters
 zcash_GenerateParams_SOURCES = zcash/GenerateParams.cpp
@@ -9,3 +9,23 @@ zcash_GenerateParams_LDADD = \
   $(LIBBITCOIN_UTIL) \
   $(LIBBITCOIN_CRYPTO) \
   $(LIBZCASH_LIBS)
+
+zcash_miner_SOURCES = \
+  libstratum/StratumClient.cpp \
+  libstratum/StratumClient.h \
+  libstratum/ZcashStratum.cpp \
+  libstratum/ZcashStratum.h \
+  standaloneminer.cpp
+zcash_miner_CPPFLAGS = $(BITCOIN_INCLUDES)
+zcash_miner_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+zcash_miner_LDADD = \
+  $(LIBBITCOIN_COMMON) \
+  $(LIBBITCOIN_CRYPTO) \
+  $(LIBBITCOIN_UTIL) \
+  $(LIBSECP256K1) \
+  $(BOOST_LIBS) \
+  $(CRYPTO_LIBS) \
+  $(LIBZCASH) \
+  $(LIBZCASH_LIBS) \
+  $(LIBGPUSOLVER) \
+  $(LIBGPUSOLVER_LIBS)

src/init.cpp

@@ -49,6 +49,7 @@
 #include <openssl/crypto.h>
 
 #include "libsnark/common/profiling.hpp"
+#include "libgpusolver/gpuconfig.h"
 
 using namespace std;
 
@@ -361,7 +362,7 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += HelpMessageOpt("-walletnotify=<cmd>", _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)"));
     strUsage += HelpMessageOpt("-zapwallettxes=<mode>", _("Delete all wallet transactions and only recover those parts of the blockchain through -rescan on startup") +
         " " + _("(1 = keep tx meta data e.g. account owner and payment request information, 2 = drop tx meta data)"));
-                    
+
 #endif
 
     strUsage += HelpMessageGroup(_("Debugging/Testing options:"));
@@ -385,6 +386,10 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += HelpMessageOpt("-gen", strprintf(_("Generate coins (default: %u)"), 0));
     strUsage += HelpMessageOpt("-genproclimit=<n>", strprintf(_("Set the number of threads for coin generation if enabled (-1 = all cores, default: %d)"), 1));
     strUsage += HelpMessageOpt("-equihashsolver=<name>", _("Specify the Equihash solver to be used if enabled (default: \"default\")"));
+    strUsage += HelpMessageOpt("-G", _("Enable GPU mining (default: false)"));
+    strUsage += HelpMessageOpt("-device=<id>", _("If -G is enabled this specifies the GPU device number to use (default: 0)"));
+    strUsage += HelpMessageOpt("-allgpu", _("If -G is enabled this will mine on all available GPU devices (default: false)"));
+    strUsage += HelpMessageOpt("-forcenolimit", _("Do not limit thread count per GPU by memory limits. (default: false)"));
 #endif
     strUsage += HelpMessageOpt("-help-debug", _("Show all debugging options (usage: --help -help-debug)"));
     strUsage += HelpMessageOpt("-logips", strprintf(_("Include IP addresses in debug output (default: %u)"), 0));
@@ -1014,15 +1019,15 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
 
         std::string warningString;
         std::string errorString;
-        
+
         if (!CWallet::Verify(strWalletFile, warningString, errorString))
             return false;
-        
+
         if (!warningString.empty())
             InitWarning(warningString);
         if (!errorString.empty())
             return InitError(warningString);
-        
+
     } // (!fDisableWallet)
 #endif // ENABLE_WALLET
     // ********************************************************* Step 6: network initialization
@@ -1492,8 +1497,14 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
 
 #ifdef ENABLE_WALLET
     // Generate coins in the background
-    if (pwalletMain)
-        GenerateBitcoins(GetBoolArg("-gen", false), pwalletMain, GetArg("-genproclimit", 1));
+    if (pwalletMain){
+       GPUConfig conf;
+ 		   conf.useGPU = GetBoolArg("-G", false) || GetBoolArg("-GPU", false);
+ 		   conf.selGPU = GetArg("-deviceid", 0);
+ 		   conf.allGPU = GetBoolArg("-allgpu", 0);
+ 		   conf.forceGenProcLimit = GetBoolArg("-forcenolimit", false);
+       GenerateBitcoins(GetBoolArg("-gen", false), pwalletMain, GetArg("-genproclimit", 1),conf);
+      }
 #endif
 
     // ********************************************************* Step 11: finished

src/libgpusolver/blake.cpp

@@ -0,0 +1,104 @@
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+#include "blake.h"
+
+static const uint32_t   blake2b_block_len = 128;
+static const uint32_t   blake2b_rounds = 12;
+static const uint64_t   blake2b_iv[8] =
+{
+    0x6a09e667f3bcc908ULL, 0xbb67ae8584caa73bULL,
+    0x3c6ef372fe94f82bULL, 0xa54ff53a5f1d36f1ULL,
+    0x510e527fade682d1ULL, 0x9b05688c2b3e6c1fULL,
+    0x1f83d9abfb41bd6bULL, 0x5be0cd19137e2179ULL,
+};
+static const uint8_t    blake2b_sigma[12][16] =
+{
+      {  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15 },
+      { 14, 10,  4,  8,  9, 15, 13,  6,  1, 12,  0,  2, 11,  7,  5,  3 },
+      { 11,  8, 12,  0,  5,  2, 15, 13, 10, 14,  3,  6,  7,  1,  9,  4 },
+      {  7,  9,  3,  1, 13, 12, 11, 14,  2,  6,  5, 10,  4,  0, 15,  8 },
+      {  9,  0,  5,  7,  2,  4, 10, 15, 14,  1, 11, 12,  6,  8,  3, 13 },
+      {  2, 12,  6, 10,  0, 11,  8,  3,  4, 13,  7,  5, 15, 14,  1,  9 },
+      { 12,  5,  1, 15, 14, 13,  4, 10,  0,  7,  6,  3,  9,  2,  8, 11 },
+      { 13, 11,  7, 14, 12,  1,  3,  9,  5,  0, 15,  4,  8,  6,  2, 10 },
+      {  6, 15, 14,  9, 11,  3,  0,  8, 12,  2, 13,  7,  1,  4, 10,  5 },
+      { 10,  2,  8,  4,  7,  6,  1,  5, 15, 11,  9, 14,  3, 12, 13,  0 },
+      {  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15 },
+      { 14, 10,  4,  8,  9, 15, 13,  6,  1, 12,  0,  2, 11,  7,  5,  3 },
+};
+
+/*
+** Init the state according to Zcash parameters.
+*/
+void zcash_blake2b_init(blake2b_state_t *st, uint8_t hash_len,
+	uint32_t n, uint32_t k)
+{
+    assert(n > k);
+    assert(hash_len <= 64);
+    st->h[0] = blake2b_iv[0] ^ (0x01010000 | hash_len);
+    for (uint32_t i = 1; i <= 5; i++)
+        st->h[i] = blake2b_iv[i];
+    st->h[6] = blake2b_iv[6] ^ *(uint64_t *)"ZcashPoW";
+    st->h[7] = blake2b_iv[7] ^ (((uint64_t)k << 32) | n);
+    st->bytes = 0;
+}
+
+static uint64_t rotr64(uint64_t a, uint8_t bits)
+{
+    return (a >> bits) | (a << (64 - bits));
+}
+
+static void mix(uint64_t *va, uint64_t *vb, uint64_t *vc, uint64_t *vd,
+        uint64_t x, uint64_t y)
+{
+    *va = (*va + *vb + x);
+    *vd = rotr64(*vd ^ *va, 32);
+    *vc = (*vc + *vd);
+    *vb = rotr64(*vb ^ *vc, 24);
+    *va = (*va + *vb + y);
+    *vd = rotr64(*vd ^ *va, 16);
+    *vc = (*vc + *vd);
+    *vb = rotr64(*vb ^ *vc, 63);
+}
+
+/*
+** Process either a full message block or the final partial block.
+** Note that v[13] is not XOR'd because st->bytes is assumed to never overflow.
+**
+** _msg         pointer to message (must be zero-padded to 128 bytes if final block)
+** msg_len      must be 128 (<= 128 allowed only for final partial block)
+** is_final     indicate if this is the final block
+*/
+void zcash_blake2b_update(blake2b_state_t *st, const uint8_t *_msg,
+        uint32_t msg_len, uint32_t is_final)
+{
+    const uint64_t      *m = (const uint64_t *)_msg;
+    uint64_t            v[16];
+    assert(msg_len <= 128);
+    assert(st->bytes <= UINT64_MAX - msg_len);
+    memcpy(v + 0, st->h, 8 * sizeof (*v));
+    memcpy(v + 8, blake2b_iv, 8 * sizeof (*v));
+    v[12] ^= (st->bytes += msg_len);
+    v[14] ^= is_final ? -1 : 0;
+    for (uint32_t round = 0; round < blake2b_rounds; round++)
+      {
+        const uint8_t   *s = blake2b_sigma[round];
+        mix(v + 0, v + 4, v + 8,  v + 12, m[s[0]],  m[s[1]]);
+        mix(v + 1, v + 5, v + 9,  v + 13, m[s[2]],  m[s[3]]);
+        mix(v + 2, v + 6, v + 10, v + 14, m[s[4]],  m[s[5]]);
+        mix(v + 3, v + 7, v + 11, v + 15, m[s[6]],  m[s[7]]);
+        mix(v + 0, v + 5, v + 10, v + 15, m[s[8]],  m[s[9]]);
+        mix(v + 1, v + 6, v + 11, v + 12, m[s[10]], m[s[11]]);
+        mix(v + 2, v + 7, v + 8,  v + 13, m[s[12]], m[s[13]]);
+        mix(v + 3, v + 4, v + 9,  v + 14, m[s[14]], m[s[15]]);
+      }
+    for (uint32_t i = 0; i < 8; i++)
+        st->h[i] ^= v[i] ^ v[i + 8];
+}
+
+void zcash_blake2b_final(blake2b_state_t *st, uint8_t *out, uint8_t outlen)
+{
+    assert(outlen <= 64);
+    memcpy(out, st->h, outlen);
+}

src/libgpusolver/blake.h

@@ -0,0 +1,10 @@
+typedef struct  blake2b_state_s 
+{
+    uint64_t    h[8];
+    uint64_t    bytes;
+}               blake2b_state_t; 
+void zcash_blake2b_init(blake2b_state_t *st, uint8_t hash_len,
+	uint32_t n, uint32_t k);
+void zcash_blake2b_update(blake2b_state_t *st, const uint8_t *_msg,  
+        uint32_t msg_len, uint32_t is_final);
+void zcash_blake2b_final(blake2b_state_t *st, uint8_t *out, uint8_t outlen);