Skip to content
cfd-lab:~/zh/tools/case-memory-estimatoronline
$ cd ..

CFD 算例内存估算器

由单元数、场数量、矩阵系数和求解器开销可视化总内存与分区内存预算。

visual calculator数值与稳定性

先看流动形态,再相信数字。

该工具把 CFD 设置转换为工况、尺度和主导效应提示。调节下方计算器,观察动态图与计算结果如何一起变化。

01
输入尺度
02
模型
03
判断
memoryHPCmesh sizeparallel CFD
公式
KaTeX rendered
memory ˜= cells * field_components * time_levels * 8 + matrix + overhead\begin{aligned}\text{memory \~{}= cells * field\_components * time\_levels * 8 + matrix + overhead}\end{aligned}
ASCII sourcememory ~= cells * field_components * time_levels * 8 + matrix + overhead
CFD memory budget16 GB128 GB512 GBlaptop scaletotal memory includes fields, sparse matrices, and solver overheadfieldsmatrixoverhead16 shown partitions; per-rank memory should fit node limits
total memory (GB)
7.4029
per-rank memory (GB)
0.4627
cells per rank
5.000e+5
stored components/cell
17
field memory (GB)
2.0266
matrix memory (GB)
2.0862
overhead memory (GB)
3.2902
hardware class
laptop scale

This is a sizing estimate, not a solver guarantee. Multigrid levels, chemistry tables, Lagrangian particles, and I/O buffers can increase memory substantially.