3. Initial files (positions and velocities of the ion's)

There is a folder called "Cloud8" (e.g. C:\Users\DarkNemo\Documents\MATLAB\CUDA\Cloud8) with three sub folders where the position and the velocities of the ion's are stored in some binary files. A binary file is a computer file that is not a text file. Many binary file formats contain parts that can be interpreted as text; for example, some computer document files containing formatted text, such as older Microsoft Word document files, contain the text of the document but also contain formatting information in binary form. When downloading, a completely functional program without any installer is also often called a program binary, or binaries (as opposed to the source code). [2]

3.1 Input 1

I0.bin Initial current

Pos5.bin $ [\vec{r_1}, \vec{r_2}, ..., \vec{r_N}]_{t_0 + 5 \Delta t} $

U5.bin $ [U(t_0 + 5 \Delta t)] $

V0.bin - V5.bin $ [\dot{U}(t_0)] $ - $ [\dot{U}(t_0 + 5 \Delta t)] $

Vel0.bin - Vel5.bin $ [\dot{\vec{r_1}}, \dot{\vec{r_2}}, ..., \dot{\vec{r_N}}]_{t_0 + k \Delta t}, k = 0, 1, ..., 5$

The x-, y- and z-position of each of the N particle with m interation steps is stored in this way. The positions are read in column by column:


The velocity of each of the N particle with m interation steps is stored in this way. The velocity are read in column by column:


3.2 Input 2

In the "Input 2"-folder (e.g. C:\Users\DarkNemo\Documents\MATLAB\CUDA\Cloud8\Input2) will be the files of the last interation step. If the simulation was too short, you can continue with this files.

3.3 Output 1

I.bin $ I = \sum\limits_{k=1}^N $

Ik.bin $ I_k = [I_1, I_2, ..., I_N] $

U.bin Voltage


x.bin $ [\vec{r_1}, \vec{r_2}, ..., \vec{r_N}]_{t_0 + j} , j = 7 \cdot [1, 2, 3, ... ] \cdot NumLogs $


The result of the simulation will be in the "Output 1"-folder (e.g. C:\Users\DarkNemo\Documents\MATLAB\CUDA\Cloud8\Output1).

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-- EvaMartenstein - 20 Apr 2015
Topic revision: r10 - 2015-05-07, EvaMartenstein
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