anatoly:OpenCV vs LibJacket

关于LibJacket与OpenCV的对比,我看到网上有来自LibJacket团队mcclanahoochie大神的:OpenCV vs. LibJacket: GPU Sobel Filtering,以及来自anatoly大神的 OpenCV vs LibJacket,其中anatoly的来自blogspot,这里转贴一下,供大家参考讨论。

 

 

Recently mcclanahoochie noticed that our OpenCV GPU module shows not the best performance of Sobel filtering and DTF-based convolution. He posted simple compassion here. I want to thank him for pointing this. I appreciate any help to make OpenCV GPU better.

To the moment we’ve updated our code (available in svn trunk r6881) and done our own comparison using the same benchmark code with only difference that we use buffered version of OpenCV’s functions in order not to allocate GPU memory inside each time (http://pastebin.com/W41RwPnu).

Update: we tested using Lib­jacket v1.0.1 (build dd66add) by Accel­erEyes

Let’s look at plots. DFT based performance is approximately the same for Fermi.



For pre-Fermi:



Filtering performance. Now for small kernels OpenCV behaves much better than before.



Oh… definitely not primary target platform for us. But much better than before.



I omitted above comparison for convolve() for kernel sizes 27 and 32. Just we’ve got some strange results here. Maybe we did something wrong with LibJacket. mcclanahoochie’s numbers are much lower, and we asked what he thinks about this in comments of his post.

基于MATLAB的建筑能耗建模系统含源码+设计报告(高分毕设项目).zip 主要功能 建立建筑物能源系统的数学模型,包括锅炉、管道、散热器、混合器、空调机组等多种元件 使用隐式求解方法解决系统的能量平衡方程 支持多个求解器并行计算不同水循环系统 提供了连接不同求解器的Bridge类 项目目标**:建立一个可配置的建筑能耗模型,模拟住宅或商用建筑在不同气候条件下的热能耗与用电动态,支持节能控制策略模拟。 应用背景 随着建筑能耗在全球总能耗中的占比不断提高,利用数学建模和计算机仿真技术对建筑热环境进行预测与优化显得尤为重要。该项目通过 MATLAB 平台构建简洁、可扩展的建筑能耗仿真环境,可用于研究: * 建筑围护结构对能耗的影响 * 加热、通风和空调系统(HVAC)策略优化 * 被动/主动节能控制策略 * 与外部天气数据的交互仿真(如 TMY3) 核心模型类(.m 文件): AirHeatExchanger.m, Boiler.m, Chiller.m, Pipe.m, Radiator.m, FanCoil.m, HeatExchanger.m, Mixer.m, Same.m 这些文件定义了热交换器、锅炉、冷水机组、管道、散热器、风机盘管、混合器等建筑能源系统组件的数学模型及热平衡方程。 控制与求解相关: SetpointController.m:HVAC 设置点控制器。 Solver.m:核心数值求解器,用于建立并求解系统线性方程组。 系统集成与桥接: Bridge.m:用于连接多个 solver 或不同流体系统之间的耦合关系。 Constant.m:定义恒定温度源或引用变量。 环境与区域: Zone.m:建筑空间(房间)模块,模拟热容、传热等。
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值