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Added task_region - a fork/join task implementation

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This commit is contained in:
Lee Clagett
2016-11-21 14:48:42 -05:00
parent dbf2ab56c5
commit f025198f19
8 changed files with 620 additions and 140 deletions
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105
src/ringct/rctSigs.cpp
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@@ -30,6 +30,7 @@
#include "misc_log_ex.h"
#include "common/perf_timer.h"
#include "common/task_region.h"
#include "common/thread_group.h"
#include "common/util.h"
#include "rctSigs.h"
@@ -39,22 +40,6 @@ using namespace crypto;
using namespace std;
namespace rct {
namespace {
struct verRangeWrapper_ {
void operator()(const key & C, const rangeSig & as, bool &result) const {
result = verRange(C, as);
}
};
constexpr const verRangeWrapper_ verRangeWrapper{};
struct verRctMGSimpleWrapper_ {
void operator()(const key &message, const mgSig &mg, const ctkeyV & pubs, const key & C, bool &result) const {
result = verRctMGSimple(message, mg, pubs, C);
}
};
constexpr const verRctMGSimpleWrapper_ verRctMGSimpleWrapper{};
}
//Schnorr Non-linkable
//Gen Gives a signature (L1, s1, s2) proving that the sender knows "x" such that xG = one of P1 or P2
//Ver Verifies that signer knows an "x" such that xG = one of P1 or P2
@@ -766,15 +751,17 @@ namespace rct {
try
{
std::deque<bool> results(rv.outPk.size(), false);
tools::thread_group threadpool(rv.outPk.size()); // this must destruct before results
tools::thread_group threadpool(tools::thread_group::optimal_with_max(rv.outPk.size()));
tools::task_region(threadpool, [&] (tools::task_region_handle& region) {
DP("range proofs verified?");
for (size_t i = 0; i < rv.outPk.size(); i++) {
region.run([&, i] {
results[i] = verRange(rv.outPk[i].mask, rv.p.rangeSigs[i]);
});
}
});
DP("range proofs verified?");
for (size_t i = 0; i < rv.outPk.size(); i++) {
threadpool.dispatch(
std::bind(verRangeWrapper, std::cref(rv.outPk[i].mask), std::cref(rv.p.rangeSigs[i]), std::ref(results[i]))
);
}
threadpool.sync();
for (size_t i = 0; i < rv.outPk.size(); ++i) {
if (!results[i]) {
LOG_ERROR("Range proof verified failed for input " << i);
@@ -804,7 +791,6 @@ namespace rct {
//assumes only post-rct style inputs (at least for max anonymity)
bool verRctSimple(const rctSig & rv) {
PERF_TIMER(verRctSimple);
size_t i = 0;
CHECK_AND_ASSERT_MES(rv.type == RCTTypeSimple, false, "verRctSimple called on non simple rctSig");
CHECK_AND_ASSERT_MES(rv.outPk.size() == rv.p.rangeSigs.size(), false, "Mismatched sizes of outPk and rv.p.rangeSigs");
@@ -813,28 +799,29 @@ namespace rct {
CHECK_AND_ASSERT_MES(rv.pseudoOuts.size() == rv.mixRing.size(), false, "Mismatched sizes of rv.pseudoOuts and mixRing");
const size_t threads = std::max(rv.outPk.size(), rv.mixRing.size());
tools::thread_group threadpool(threads);
{
std::deque<bool> results(rv.outPk.size(), false);
{
const std::unique_ptr<tools::thread_group, tools::thread_group::lazy_sync>
sync(std::addressof(threadpool));
for (i = 0; i < rv.outPk.size(); i++) {
threadpool.dispatch(
std::bind(verRangeWrapper, std::cref(rv.outPk[i].mask), std::cref(rv.p.rangeSigs[i]), std::ref(results[i]))
);
}
} // threadpool.sync();
for (size_t i = 0; i < rv.outPk.size(); ++i) {
if (!results[i]) {
LOG_ERROR("Range proof verified failed for input " << i);
return false;
}
std::deque<bool> results(threads);
tools::thread_group threadpool(tools::thread_group::optimal_with_max(threads));
results.clear();
results.resize(rv.outPk.size());
tools::task_region(threadpool, [&] (tools::task_region_handle& region) {
for (size_t i = 0; i < rv.outPk.size(); i++) {
region.run([&, i] {
results[i] = verRange(rv.outPk[i].mask, rv.p.rangeSigs[i]);
});
}
});
for (size_t i = 0; i < results.size(); ++i) {
if (!results[i]) {
LOG_ERROR("Range proof verified failed for input " << i);
return false;
}
}
key sumOutpks = identity();
for (i = 0; i < rv.outPk.size(); i++) {
for (size_t i = 0; i < rv.outPk.size(); i++) {
addKeys(sumOutpks, sumOutpks, rv.outPk[i].mask);
}
DP(sumOutpks);
@@ -843,27 +830,25 @@ namespace rct {
key message = get_pre_mlsag_hash(rv);
{
std::deque<bool> results(rv.mixRing.size(), false);
{
const std::unique_ptr<tools::thread_group, tools::thread_group::lazy_sync>
sync(std::addressof(threadpool));
for (i = 0 ; i < rv.mixRing.size() ; i++) {
threadpool.dispatch(
std::bind(verRctMGSimpleWrapper, std::cref(message), std::cref(rv.p.MGs[i]), std::cref(rv.mixRing[i]), std::cref(rv.pseudoOuts[i]), std::ref(results[i]))
);
}
} // threadpool.sync();
for (size_t i = 0; i < results.size(); ++i) {
if (!results[i]) {
LOG_ERROR("verRctMGSimple failed for input " << i);
return false;
}
results.clear();
results.resize(rv.mixRing.size());
tools::task_region(threadpool, [&] (tools::task_region_handle& region) {
for (size_t i = 0 ; i < rv.mixRing.size() ; i++) {
region.run([&, i] {
results[i] = verRctMGSimple(message, rv.p.MGs[i], rv.mixRing[i], rv.pseudoOuts[i]);
});
}
});
for (size_t i = 0; i < results.size(); ++i) {
if (!results[i]) {
LOG_ERROR("verRctMGSimple failed for input " << i);
return false;
}
}
key sumPseudoOuts = identity();
for (i = 0 ; i < rv.mixRing.size() ; i++) {
for (size_t i = 0 ; i < rv.mixRing.size() ; i++) {
addKeys(sumPseudoOuts, sumPseudoOuts, rv.pseudoOuts[i]);
}
DP(sumPseudoOuts);