JP2021502634A - 最適化された検証可能な計算のための実行可能命令を簡略化するためのシステム - Google Patents
最適化された検証可能な計算のための実行可能命令を簡略化するためのシステム Download PDFInfo
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Abstract
Description
第1プログラミング言語で符号化された条件のセットを、第2プログラミング言語で符号化された条件のプログラムセット(programmatic set)に変換するステップと;
条件のプログラムセットを予めコンパイルされたプログラムコードに予めコンパイルするステップと;
予めコンパイルされたプログラムコードを算術回路に変形する(transforming)ステップと;
算術回路を縮小(reducing)して縮小算術回路(reduced arithmetic circuit)を形成するステップと;
を含む。
(外1)
)等を含み得る。いくつかの実施形態では、主機能は、所定の名前及びフォーマットを有するように生成される。
f(a,b,c,d)=ab+bc’+d
では、ab、bc’、abc’、abc’d及びdは、fのインプリカントの例である。いくつかの例では、「プライムインプリカント(prime implicant(主項))」は、より一般的な(例えばより少ないリテラル(literals)の)インプリカントではカバーすることができないインプリカントを指す。すなわち、プライムインプリカントは、いずれかのリテラルがPから除去された場合に、fについて非インプリカントとなる積項Pである。上記の例を使用すると、abc’dはプライムインプリカントではない。なぜなら、リテラルを除去してプライムにすることができるからである(abc’dをプライムインプリカントにするためには、a=1及びb=1及びC=0及びd=1の場合にのみ、f(a,b,c,d)は1に等しくなければならない)。
・m4=f(0,1,0,0)=a’bc’d’
・m8=f(1,0,0,0)=ab’c’d’
・m10=f(1,0,1,0)=ab’cd’
・m11=f(1,0,1,1)=ab’cd
・m12=f(1,1,0,0)=abc’d’
・m15=f(1,1,1,1)=abcd
f(a,b,c,d)=a’bc’d’+ab’c’d’+ab’cd’+ab’cd+abc’d’+abcd
m4,12=f(−,1,0,0) [既約]
m_(8,9)=f(1,0,0,−)
m8,10=f(1,0,−,0)
m8,12=f(1,−,0,0)
m9,11=f(1,0,−,1)
m10,11=f(1,0,1,−)
m10,14=f(1,−,1,0)
m12,14=f(1,1,−,0)
m11,15=f(1,−,1,1)
m14,15=f(1,1,1,−)
m8,9,10,11=f(1,0,−,−) [既約]
m8,10,12,14=f(1,−,−,0) [既約]
m10,11,14,15=f(1,−,1,−) [既約]
σ0=σ(v0=4)=bc’d’
σ1=σ(v1=8)=ab’+ad’
σ2=σ(v2=10)=ab’+ad’+ac
σ3=σ(v3=11)=ab’+ac
σ4=σ(v4=12)=bc’d’+ad’
σ5=σ(v5=15)=ac
f*=(bc’d’)(ab’+ad’)(ab’+ad’+ac)(ab’+ac)(bc’d’+ad’)(ac)
となる。
f*=z0(z1+z2)(z1+z2+z3)(z1+z3)(z0+z2)z3
と書き直すことができる。
1.u+uv=u
2.u+u’v=uv
3.(u+v)(u+w)=u+vw
(z1+z2)(z1+z3)=z1+z2z3 (ルール3)
z0(z0+z2)=z0 (ルール1)
f*=z0z3(z1+z2z3)(z1+z2+z3)
f*=z0z3(z1z1+z1z2+z1z3+z1z2z3+z2z2z3+z2z3z3)
f*=z0z3(z1+z1z2+z1z3+z1z2z3+z2z3+z2z3)
f*=z0z3(z1+z2z3)
f*=z0z1z3+z0z2z3
f=z0+z1+z3=bc’d’+ab’+ac
あるいは、
f=z0+z2+z3=bc’d’+ad’+ac
と簡略化することができる。
σ1=z11+z12+・・・+z1|z1|
σ2=z21+z22+・・・+z2|z2|
・・・
σM=zM1+zM2+・・・+zM|zM|
1.ルール1に従って(左、右)を簡略化するよう試み、
2.ルール2に従って(左、右)を簡略化するよう試み、
3.ルール3に従って(左、右)を簡略化するよう試みる。
ここで、
本開示において説明され、示唆された新規な技術は、ブロックチェーンデータ構造内に記憶されたデータの完全性を保証するブロックチェーンの特性を妨げることなく、ブロックチェーンの機能性を拡張する。例えばこの技術は、特に、レコードに埋め込まれたブロックチェーントランザクション内で検証のための条件が定義されているデジタルレコード検証の分野において、計算の分野を改善することができる。本開示に記載及び示唆される技術は、ブロックチェーン上で検証されているスマートコントラクトを簡略化することによってブロックチェーンノードが処理リソースの使用を最適化することを可能にすることにより、スマートコントラクトの生成及び実行の分野における計算の分野を更に改善することができる。加えて、本開示で記載及び示唆される技術は、二次算術プログラムを導出することができる縮小算術回路にスマートコントラクトを変形し、それにより、ブロックチェーンノードがスマートコントラクトをより効率的に実行することを可能にすることによって、ブロックチェーンノードの効率を改善することができる。
Claims (15)
- 第1プログラミング言語で符号化された条件のセットを取得するステップと;
前記条件のセットを、第2プログラミング言語で符号化された条件のプログラムセットに変換するステップと;
前記条件のプログラムセットを予めコンパイルされたプログラムコードに予めコンパイルするステップと;
前記予めコンパイルされたプログラムコードを算術回路に変形するステップと;
前記算術回路を縮小して縮小算術回路を形成するステップと;
前記縮小算術回路を格納するステップと;
を含む、コンピュータ実施される方法。 - 前記算術回路を縮小することは、前記算術回路を最小化して前記縮小算術回路を生成することを含む、
請求項1に記載のコンピュータ実施される方法。 - 前記算術回路は、
論理ゲート及び入力を表すノードのセット及び
前記論理ゲートと前記入力の間のワイヤを表す前記ノードを接続するエッジのセット、
を含む有向非巡回グラフである、
請求項1又は2に記載のコンピュータ実施される方法。 - 前記算術回路は、前記ノードのセットのうちの適切なサブセットを含む論理サブモジュールを含み、
前記算術回路を縮小することは、前記算術回路の残り部分とは別に前記論理サブモジュールを縮小することを含む、
請求項3に記載のコンピュータ実施される方法。 - 前記論理サブモジュール内の前記論理ゲートの間の前記ワイヤは、幅が1ビットである、
請求項4に記載のコンピュータ実施される方法。 - 前記算術回路は、前記ノードのセットのうちの他のサブセットを含む別の論理サブモジュールを更に含み、前記ノードのサブセット及びノードの前記他のサブセットは交差しておらず、
前記算術回路を縮小することは、第2プロセッサコアを使用して前記他の論理サブモジュールを縮小することと並列に第1プロセッサコアを使用して前記論理サブモジュールを縮小することを更に含む、
請求項4又は5に記載のコンピュータ実施される方法。 - 計算リソース使用を最適化するためのヒューリスティックに従って、前記論理サブモジュールを前記第1プロセッサコアに割り当てて、前記他の論理サブモジュールを前記第2プロセッサコアに割り当てるステップを更に含む、
請求項6に記載のコンピュータ実施される方法。 - 前記ヒューリスティックは、最長処理時間貪欲法である、
請求項7に記載のコンピュータ実施される方法。 - 前記算術回路を縮小することは、
前記算術回路のプライムインプリカントのセットを決定することと、
前記プライムインプリカントのセットを、第1積項及び第2積項を含む和の積として表すことと、
前記第1積項及び前記第2積項を簡略化することと、
を含む、請求項1乃至8のいずれかに記載のコンピュータ実施される方法。 - 前記第1積項及び前記第2積項を簡略化することは、ブール最小化ルールを前記第1積項及び前記第2積項に適用することによって実行される、
請求項9に記載のコンピュータ実施される方法。 - 前記第2プログラミング言語はC++である、
請求項1乃至10のいずれかに記載のコンピュータ実施される方法。 - 前記第1プログラミング言語は、機械読取可能な金融コントラクトを構成するために考案されたコンピュータプログラミング言語である、
請求項1乃至11のいずれかに記載のコンピュータ実施される方法。 - 前記縮小算術回路を説明する多項式のセットを含む二次プログラムを生成するステップと、
前記二次プログラムの実行においてブロックチェーンネットワーク内のノードによって使用されるパラメータのセットを生成するステップと、
を更に含む、請求項1乃至12のいずれかに記載のコンピュータ実施される方法。 - システムにおいて。
プロセッサと、
前記プロセッサによって実行された結果として、前記システムに、請求項1乃至13のいずれかに記載のコンピュータ実施される方法を実行させる、実行可能命令を含むメモリと、
を含むシステム。 - コンピュータシステムのプロセッサによって実行された結果として、前記コンピュータシステムに、請求項1乃至13のいずれかに記載のコンピュータ実施される方法を少なくとも実行させる、実行可能命令を記憶している非一時的コンピュータ読取可能記憶媒体。
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