Abstract: The present specification provides a method and an apparatus for creating a shared remote direct memory access link, which are applied to a local terminal. The method includes: receiving a first creating request for a first shareable remote direct memory access RDMA link initiated by a first application process on the local terminal, where an associated memory address indicated by the first creating request for the first shareable RDMA link is a shared memory address of the first application process and a second application process on the local terminal; creating the first shareable RDMA link between the local terminal and an opposite terminal according to the first creating request, so that the shared memory address is registered to an RDMA device on the local terminal as the associated memory address of the first shareable RDMA link.

Abstract: A PET hydrolase having high enzymatic activity is disclosed. The PET hydrolase has a modified amino acid sequence of SEQ ID NO: 2. The modified enzyme has improved PET-hydrolytic activity, thereby obtaining the high-yield and high-activity PET hydrolase, and enhancing the industrial application value of the PET hydrolase.

Abstract: Embodiments of the present application provide an RDMA-based link establishment method and apparatus, a device and a storage medium. In the embodiments of the present application, for a scenario where a plurality of communication links are required to be established between upper-layer applications of two sides, i.e., a client and a server, virtual links are abstracted in an RDMA link, a plurality of virtual links are allowed to be created in one RDMA link, and the plurality of virtual links share resources of one RDMA link, such that the upper-layer applications of the two sides realize multi-path data transmission by means of the plurality of virtual links carried in the same RDMA link.

Abstract: In a downhole completion, a perforated base pipe, having a central longitudinal axis, is concentrically surrounded by a sand screen. The sand screen is bound by an upper extremity and a lower extremity. At least one of the upper extremity and the lower extremity is slidable. The downhole completion may be manufactured by providing a perforated base pipe having a central longitudinal axis; providing an assembly with a plurality of ribs extending between the upper extremity and the lower extremity along a helical rib path; and shrink-fit wrapping at least one screen wire on the plurality of ribs while the assembly is concentrically arranged on the perforated base pipe whereby at least one, preferably both, of the upper extremity and the lower extremity are slidable on the perforated base pipe.

Abstract: Data processing method and apparatus are disclosed. The method includes: processing input data based on the data processing network, to obtain intermediate data; acquiring a fixed attention feature output by the attention network, which is obtained after training the model with at least an initialized attention feature, respective attention weights included in the initialized attention feature are not all the same; processing the intermediate data based on the data aggregation network and according to the fixed attention feature, to obtain output data. The fixed attention network does not receive any input previously, that is, attention feature output by the attention network is irrelevant to input data. The fixed attention feature can not only allow a more important parameter of the model to play a greater role to improve accuracy of the model and determine importance of the parameter, but also be conducive to further compression of the model.

Abstract: The present disclosure provides a method, an apparatus, and a non-transitory computer readable medium for scheduling tasks.

Abstract: A migration method and a migration system of a virtual machine are disclosed. The method includes: a virtual machine detecting whether a migration instruction is received, wherein the virtual machine runs on a first processor of a first host machine; the virtual machine calling and obtaining video memory data generated in the first processor if the migration instruction is detected; and the virtual machine migrating the video memory data to a second processor of a second host machine. The present disclosure solves the technical problem that a virtual machine using a GPU pass-through mode fails to perform a live migration between host machines in the existing technologies.

Abstract: Provided are an accelerator, an acceleration method, and an electronic device. The accelerator includes: a calculating unit including a general operation logic performing an operation of different operation types in response to different inputs; an acquiring unit, configured to acquire a target microcode instruction generated according to a target type operation to be implemented; the target microcode instruction is used to indicate target input data required to enable the general operation logic to implement the target type operation; a parsing unit, configured to parse the target microcode instruction to obtain a parsing result corresponding to the target input data; and a controlling unit, configured to, in response to the parsing result, control the calculating unit to enable the calculating unit to acquire the target input data and run the general operation logic based on the target input data so as to complete the target type operation.

Abstract: A data transmission method, a device, a network system, and a storage medium. According to the method, a PCIe request end requests an application scenario of a data fragment from a PCIe destination end according to a Non-Posted data transmission mode; and on a PCIe link, the Non-Posted data transmission mode is converted, without the perception of the PCIe request end and PCIe destination end, into a Posted data transmission mode by means of pre-reading, so that the delay of the PCIe link is reduced, and the utilization of bandwidth of the PCIe link is improved.

Abstract: The present disclosure relates to a device access method and system for a secure docker. The method includes: creating a first communication module within the secure docker; creating a second communication module for communication with the first communication module in a server where the secure docker is located; creating a second device node corresponding to the secure docker in the server, and allocating at least part of hardware resources of a physical device to the second device node; creating a first device node corresponding to the at least part of the hardware resources within the secure docker; and transferring access operation information of an application program in the secure docker for the first device node to the second device node through the first communication module and the second communication module.

Abstract: A distributed task processing method, a distributed system, and a first device. A distributed task comprises at least two sub-tasks respectively executed by at least two devices in a distributed system, and the at least two devices in the distributed system comprise a first device. A processor of the first device stores in a memory result data of the execution of the first sub-tasks, such that the interaction with a disk is reduced in a data computing stage. Since the result data is stored in the memory, a network card of the first device can directly transmit the result data in the memory to a network card of a second device by means of a network, such that the interaction with the disk and the consumption of computing resources are also reduced in a data shuffling stage.

Abstract: The present specification provides a method and an apparatus for creating a shared remote direct memory access link, which are applied to a local terminal. The method includes: receiving a first creating request for a first shareable remote direct memory access RDMA link initiated by a first application process on the local terminal, where an associated memory address indicated by the first creating request for the first shareable RDMA link is a shared memory address of the first application process and a second application process on the local terminal; creating the first shareable RDMA link between the local terminal and an opposite terminal according to the first creating request, so that the shared memory address is registered to an RDMA device on the local terminal as the associated memory address of the first shareable RDMA link.

Abstract: Data processing method and apparatus are disclosed. The method includes: processing input data based on the data processing network, to obtain intermediate data; acquiring a fixed attention feature output by the attention network, which is obtained after training the model with at least an initialized attention feature, respective attention weights included in the initialized attention feature are not all the same; processing the intermediate data based on the data aggregation network and according to the fixed attention feature, to obtain output data. The fixed attention network does not receive any input previously, that is, attention feature output by the attention network is irrelevant to input data. The fixed attention feature can not only allow a more important parameter of the model to play a greater role to improve accuracy of the model and determine importance of the parameter, but also be conducive to further compression of the model.

Abstract: An ultrahigh-strength SiO2 aerogel with alternately configured soft chains and hard cores, and a method for preparing same are provided. According to the present invention, firstly, octa-olefin functionalized silsesquioxane and a mercapto silane coupling agent are dissolved in an organic solvent under a protective gas to perform a catalytic reaction, and then the reaction system is dried to obtain a white powder; secondly, the white powder is dissolved in an alcohol solution, the mixture is stirred until the white powder is completely dissolved, and then an acid-catalyzed hydrolysis reaction and a heat-induced gelation reaction under an alkaline environment are performed to obtain a wet gel; and finally, the gel is subjected to aging, surface modification, displacement and vacuum lyophilization to obtain the ultrahigh-strength SiO2 aerogel with alternately configured soft chains and hard cores.

Abstract: A PET hydrolase having high enzymatic activity is disclosed. The PET hydrolase has a modified amino acid sequence of SEQ ID NO: 2. The modified enzyme has improved PET-hydrolytic activity, thereby obtaining the high-yield and high-activity PET hydrolase, and enhancing the industrial application value of the PET hydrolase.

Abstract: Provided are a video stream processing method and apparatus, an electronic device and a computer-readable medium, which relate to the field of Internet technology. An exemplary method includes: storing a video frame in an original video stream in a first buffer area by calling a video stream processing interface of a video stream processing tool; processing the video frame in the first buffer area by means of a video frame processing model to obtain a processed video frame; and on the basis of the processed video frame, generating a standard video stream corresponding to the original video stream. By means of the embodiments of the this application, the software complexity of video stream processing is effectively reduced, and the speed of video stream processing is effectively improved.

Abstract: Embodiments of the present disclosure provide a data processing method and apparatus, wherein the data processing method includes: determining a first matrix and a second matrix, and splitting the second matrix into a first preset quantity of matrix blocks; invoking a Montgomery modular multiplication and addition instruction to perform an operation on an element included in the first matrix and an element included in a jth matrix block to obtain a matrix block operation result corresponding to the jth matrix block, and covering the element in the jth matrix block with the matrix block operation result corresponding to the jth matrix block; and increasing j by 1, continuing to perform the above-described step of obtaining the matrix block operation result until j is equal to the first preset quantity so as to obtain a target matrix from the matrix multiplication operation performed on the first matrix and the second matrix.

Abstract: A data transmission method, a device, a network system, and a storage medium. According to the method, a PCIe request end requests an application scenario of a data fragment from a PCIe destination end according to a Non-Posted data transmission mode; and on a PCIe link, the Non-Posted data transmission mode is converted, without the perception of the PCIe request end and PCIe destination end, into a Posted data transmission mode by means of pre-reading, so that the delay of the PCIe link is reduced, and the utilization of bandwidth of the PCIe link is improved.

Abstract: A method for preparing a palladium-loaded heterojunction composite framework aerogel, including: preparing a hollow tin dioxide (SnO2) nanofiber; preparing a tetrabutyl titanate-hollow SnO2 nanofiber mixed solution; preparing a palladium dichloride (PdCl2) precursor solution; adding the PdCl2 precursor solution to the tetrabutyl titanate-hollow SnO2 nanofiber mixed solution to form a heterojunction double-network composite framework gel; and preparing a palladium nanoparticle-loaded heterojunction double-network composite framework aerogel. A method for preparing a hydrogel sensor coated with the palladium-loaded heterojunction composite framework aerogel is also provided herein.

Abstract: A detection method using a frequency modulated continuous wave, a radar, and a computer-readable storage medium. The method includes: emitting a detection wave to detect a target object, where the detection wave is a nonlinear frequency sweep modulated signal; receiving an echo of the detection wave reflected by the target object; obtaining an actual beat frequency signal according to the echo and the detection wave; and obtaining a distance and/or velocity of the target object according to the actual beat frequency signal. By the method, the decoupling and separation of distance/velocity information may be completed in a single cycle. The decoupling and separation of a distance/velocity can be completed within a single frequency sweep cycle, and a detection probability of a system is kept from deteriorating.