stencils

Mac 都有哪些比较好的绘图软件

由 只愿长相守 提交于 2021-02-13 20:27:01
文章简介 在日常的工作中，我们难免会在电脑上做一些简易图。一方面是便于自己理解问题，同时也是方便给别人演示。今天分享两款超级好用的绘图工具。直接回复"绘图软件"即可领取免费安装包。 软件介绍 OmniGraffle Omni Graffle 好用在它的一些现成的模版，他们叫做Stencil的东西。这是一种可高度定制的图形模版形式。是他们软件自身的独有格式。该模版中有足够的智能功能。比方说下图的，颜色自动生成、间距、形状等。 ——如果你想要建立一个工作流程关系图，你不需要雕琢方形、圆形、箭头、之类的图形，你只需要找一个相应的Stencils，你所要的箭头、图形等那里已经有了，你只要拖动几下鼠标，输入几个文字，搞定。（可能到这儿，你会觉得，Power Point、Keynote 也行啊，但是）并且所有的图形关系经过Stencils进行自行调整布局、大小；同一级别颜色相同等。（现在就可以把他们导入图片，插入你的PPT里面了。足够专业，节省时间）——如果你想弄一个复杂的，没有Stencil模版能够解决的东西。这也是你该选的，它有一系列象Photoshop那样行云流水的快捷键、鼠标操作体系，你可以尽情高效的创作。图形更Business一点：简洁、高效。当然你也可以把自己的劳动成果创造成自己的Stencils，这次你用了2多些时间，下次你要做同样的示意图时。只需要几分钟。 这两个就是他专业所在

Effects of Loop unrolling on memory bound data

由 白昼怎懂夜的黑 提交于 2020-01-03 02:24:10
问题 I have been working with a piece of code which is intensively memory bound. I am trying to optimize it within a single core by manually implementing cache blocking, sw prefetching, loop unrolling etc. Even though cache blocking gives significant improvement in performance. However when i introduce loop unrolling I get tremendous performance degradation. I am compiling with Intel icc with compiler flags -O2 and -ipo in all my test cases. My code is similar to this (3D 25-point stencil): void

OpenGL Stenciling, separating ref from value written?

由 喜你入骨 提交于 2019-12-13 01:14:42
问题 The following code sets up the stencil test to see if ref is greater than the stored value in the stencil buffer, and if it is, it'll write ref to the stencil buffer unsigned int ref = 42; glStencilFunc(GL_GREATER, ref, 0xFF); glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE); The problem is that while I do want to test the stencil buffer against ref , I don't want to write ref to it if it succeeds, I want to write a totally different value. The only option I've found is GL_INCR which can take the

Generic OpenCL stencil kernel and host

由 喜夏-厌秋 提交于 2019-12-10 15:14:25
问题 I am new to OpenCL. I would like to write a generic kernel so later I can extend its use to other memory non-coalescing patterns and pairing this with Rectangular stencil pattern for simplicity (also avoiding out-of-bound access). This kernel controls the use of local memory ( __local float ∗lmem ). As of now, I have structures my .cl file as bellow: __kernel void kmain ( __global float ∗in , __global float ∗out , __global float ∗in2 , __local float ∗lmem) { int wg_x = get group id(0); int wg

Floating multiplication performing slower depending of operands in C

由 ε祈祈猫儿з 提交于 2019-12-04 16:08:53
问题 I am performing a stencil computation on a matrix I previously read from a file. I use two different kinds of matrices (NonZero type and Zero type). Both types share the value of the boundaries (1000 usually), whilst the rest of the elements are 0 for Zero type and 1 for NonZero type. The code stores the matrix of the file in two allocated matrices of the same size. Then it performs an operation in every element of one matrix using its own value and values of neighbours (add x 4 and mul x 1),

Floating multiplication performing slower depending of operands in C

由 亡梦爱人 提交于 2019-12-03 10:12:27
I am performing a stencil computation on a matrix I previously read from a file. I use two different kinds of matrices (NonZero type and Zero type). Both types share the value of the boundaries (1000 usually), whilst the rest of the elements are 0 for Zero type and 1 for NonZero type. The code stores the matrix of the file in two allocated matrices of the same size. Then it performs an operation in every element of one matrix using its own value and values of neighbours (add x 4 and mul x 1), and stores the result in the second matrix. Once the computation is finished, the pointers for
订阅 stencils