Jedes mal, wenn der Bergmann wählte nicht die Belohnung, er darf, oder spannte die Transaktion an anderer Stelle. Als ob das jemals tatsächlich passiert ist, ich weiß es nicht und bin auf der Suche... @TannerL.Swett In Fall 1, wir können und tun. Im Fall 2 können wir nicht, weil wir haben Konflikte, die geklärt werden müssen. "Ich dachte die ganze Adresse ich habe für die btc enthalten, der private Schlüssel." Das würde das system ziemlich nutzlos. Jedes mal, wenn Sie wollte jemanden, der dir Geld schicken, Sie würde haben, um Ihnen die Möglichkeit zu nehmen, *Ihr* Geld! PoW ist keine Antwort. es gibt Sie Abständen. der pool, die Aufgabe Geber, kümmern Sie sich nicht, wenn Sie es tun können schneller. wenn Sie können, werden Sie passen Sie Ihre bits/diff... das ist meiner Meinung nach wieder eine rote Flagge, um die "fuzzy-logic" high-speed-Ansatz, wenn ich das sagen darf das :)

In GPU scrypt mining, die optimierte Schwelle-lookup-gap 2 ist. Es bedeutet, dass die GPU speichert nur 0, 2, 4, ..., etc. zu GDDR (globalen Speicher der GPU) und reduzieren riesige Menge Zeit sparen alle 128KB Daten für einen scrypt Berechnung. Allerdings braucht es einige GPU-Zyklen neu berechnet für die Elemente, wenn der Algorithmus die Daten im index von 1, 3, 5, ... Und Remixen diese 1024 Elementen nimmt auch die GPU-Zyklen. In der GPU-Architektur, die hardware-scheduler wird Ihnen helfen zu verbergen die Latenz des Speicher Lesen/schreiben. Also, die GPU-Zyklen sind nicht verschwendet. Einer der ineffiziente Teil wird die parallelisierte Verarbeitung mit bedingten code. Für eine wave-front-oder stream-Prozessor zum berechnen der n-dimension auf einmal, nicht jeder Kern braucht und berechnet die Werte der ungeraden index der Elemente. So einige Kerne müssen maskiert werden, da Sie ab und sind verschwendet.

if (j & 1)
salsa(...);

Wenn die GPU berechnet die N Elemente auf einmal, dann jede variable j der andere thread konnte sogar oder seltsam ist. Also nur den thread, das hat ungerade Anzahl in j braucht um den code ausführen zu salsa - ersten. Es gibt nur einen gemeinsamen Programm-Zähler in der Recheneinheit, so dass jeder thread läuft der gleiche code. Aber für solche threads, die nicht brauchen, das zu tun, salsa agin, diese Prozessoren werden abgeklebt, wie Sie sind, nicht ausgeführt wird, und berechnen Sie den code.

Also, in der GPU-Programmierung Handbuch, es sagt Ihnen der folgende Code ist ineffizient.

wenn (A)
 B = 0;
sonst
 B = 1;

Dann die GPU laufen muss, den code zweimal. Eines ist für den wahren Zustand und die andere ist für den false Zustand.

Es ist besser, neu zu schreiben den code wie folgt.

B = A ? 0 : 1;

Jedoch, in scrypt, salsa ist nicht ein einfacher Ausdruck machen kann, wie dieser Weg.

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