3 results about "Reverse execution" patented technology

There is provided a method for performing operations in a solid-state qubit processor. A provided (S100) logical qubit, comprising a plurality of data qubits, is extended (S102) and split (S104) to create two or more entangled portions. A first portion is shuttled (S106) in the qubit processor, separating it from a second portion, which may remain in place. During this shuttling process, faults may have occurred, which may have damaged or corrupted the first portion. Accordingly, a likelihood of fault is determined (S108), based upon a measurement operation. Based upon the likelihood of fault, the first portion or the second portion is selected (S110). In some examples, when selecting the first portion, the logical qubit is shuttled, and when selecting the second portion, the shuttling process is reversed and any potential damage or corruption to the first portion is reverted, with the logical qubit returned to its initial state. In this way, the method may provide a "logically reversible" shuttling operation.

The present invention discloses a method and system for assisting in locating software vulnerabilities for the ARM architecture, belonging to the field of information technology. It includes: running the software to be analyzed and triggering a vulnerability to cause it to crash, extracting the core dump file and the instruction sequence executed before the crash, where the core dump file stores the memory layout information and register information when the thread crashes; scanning the core dump file, performing reverse execution in combination with the instruction sequence executed before the crash, and restoring the memory address information and register information of each instruction before the crash; starting from the crash point, combining the restored information, and reverse-tracking the instructions that have a data dependency relationship with the data at the crash point to obtain the instruction sequence that directly or indirectly causes the thread to crash. The present invention helps software developers and security analysts quickly locate the program defects that cause the thread to crash; effectively reduces the complexity of the source data used for analyzing the crashed program, and simplifies the user analysis process.

The invention discloses a resource scheduling method and device, electronic equipment and a storage medium, and relates to the technical field of computing power scheduling. The method comprises the steps of determining semantic features of task instruction data, constructing a clockwise execution chain flow and an anticlockwise execution chain flow according to the semantic features and the task instruction data, and performing standardization processing on the clockwise execution chain flow and the anticlockwise execution chain flow to generate a chain task graph structure; determining instruction association data, determined for the task chain instruction, of a clockwise execution chain flow and an anticlockwise execution chain flow in the chain type task graph structure, and determining a coupling symmetry relation of the task chain instruction according to the instruction association data; when the coupling symmetric relationship meets a preset condition, determining a resource adjustment strategy according to a cycle category corresponding to the task chain instruction, and determining a resource matching result according to the resource adjustment strategy; and determining a configuration energy value of the quantum task in the task chain instruction of the forward execution chain flow, fusing the resource matching results according to the configuration energy value to obtain a target resource matching result, and performing hierarchical scheduling according to the target resource matching result.