Coarse particle parallel iteration method and device for inter-layer coupling immediate updating of integrated circuit
An integrated circuit and coarse-grained technology, applied in CAD circuit design, special data processing applications, complex mathematical operations, etc., can solve problems such as reading and writing bottlenecks, unequal complexity of calculation instances, and process waiting, etc. The effect of avoiding hard disk read and write bottlenecks
Active Publication Date: 2021-06-18
北京智芯仿真科技有限公司
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[0005] Based on the above problems, the present invention proposes a coarse-grained parallel iterative method and device for real-time update of inter-integrated circuit inter-layer coupling. Avoid the hard disk reading and writing bottleneck caused by the peak value of the memory being greater than the available physical memory during multi-process parallel computing, and at the same time perfectly solve the process waiting problem caused by the unequal complexity of different computing instances, thereby greatly improving the efficiency of parallel computing. This application discloses the following Technical solutions
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[0058] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention.
[0059] It should be noted that: in the drawings, the same or similar symbols represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the present invention, but not all of the embodiments. In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0060] In describing the present invention, it is to be understood that...
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The invention provides a coarse particle parallel iteration method and device for immediate updating of integrated circuit interlayer coupling, and the method comprises the following steps: dividing the iterative calculation of the integrated circuit interlayer coupling into parallel calculation particles, and combining the parallel calculation particles into two types of parallel calculation coarse particles according to the CPU weighting time; secondly, current distribution of the source layers being iterated, wherein during each iteration, mutual influence between integrated circuit layers is subjected to undifferentiated parallel calculation based on two types of parallel calculation coarse particles, the field and current distribution of each source layer is updated, and the change quantity of each source layer field is calculated; then, layers which can be ignored being determined through the effective influence value of the vector Green function, and then the action layer range of the source layer being dynamically modified; and repeatedly iterating the source layers until the change quantity of the field of the acted layer caused by the influence change of all the source layers is less than a specified threshold value, and ending the iteration. According to the method, the calculation time of the electromagnetic response of the three-dimensional multilayer integrated circuit can be linearly reduced along with the parallel process number.
Description
technical field [0001] The invention relates to the technical field of integrated circuits, in particular to a coarse-grained parallel iterative method and device for real-time update of inter-layer coupling of integrated circuits. Background technique [0002] When the integrated circuit is working, due to the transmission of high-speed signals on its multi-layer layout, a high-frequency alternating electromagnetic field will be formed. These high-frequency alternating electromagnetic fields will form a high-frequency radiation source, causing crosstalk to other signal layers or other integrated circuits and chips. and electromagnetic radiation, affecting the normal operation of other signal layers or other integrated circuits and chips, so when designing, it is necessary to calculate the influence of space electromagnetic radiation between the various layers of the integrated circuit. In the traditional calculation of the space electromagnetic radiation of integrated circu...
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IPC IPC(8): G06F30/23G06F30/33G06F17/16G06F17/18
CPCG06F17/16G06F17/18G06F30/23G06F30/33
Inventor 唐章宏邹军黄承清汲亚飞王芬
Owner 北京智芯仿真科技有限公司