Matlab spmd and CoolProp (CPython library)

54 次查看（过去 30 天）
Ibrahim KAYA
Ibrahim KAYA 2023-3-6
评论： Ibrahim KAYA 2023-3-7
Hi everone,
when i want to run the following code block in matlab spmd in Windows 11,
CP = py.importlib.import_module('CoolProp');
Fluid = CP.AbstractState("HEOS", 'water');
n = 4;
T = 300 + 273.15;
P = 100;
spmd (n)
T = T + 10*spmdIndex;
Fluid.update(CP.PT_INPUTS, P*1000, T);
Fluid.cpmass();
Fluid.rhomass();
Fluid.conductivity();
Fluid.viscosity();
end
I got the error shown in below;
Worker 1:
Warning: Unable to load Python object. Saving (serializing) Python objects into a MAT-file is not supported.
> In parallel.internal.pool.deserialize (line 33)
In parallel.internal.pool.deserializeFunction (line 17)
In spmdlang.remoteBlockExecution>iDeserializeInputs (line 59)
In spmdlang.remoteBlockExecution>iUnpackPreludeArgs (line 46)
In spmdlang.remoteBlockExecution (line 12)
Warning: Unable to load Python object. Saving (serializing) Python objects into a MAT-file is not supported.
> In parallel.internal.pool.deserialize (line 33)
In parallel.internal.pool.deserializeFunction (line 17)
In spmdlang.remoteBlockExecution>iDeserializeInputs (line 59)
In spmdlang.remoteBlockExecution>iUnpackPreludeArgs (line 46)
In spmdlang.remoteBlockExecution (line 12)
What can I do for this problem, I will be glad if you help me....

请先登录，再回答此问题。

采纳的回答

Edric Ellis
Edric Ellis 2023-3-7
You need to avoid transferring the objects to the workers, and instead simply build the objects directly on the workers. The simplest way to do this is to move the lines creating CP and Fluid inside your spmd block, like this:
n = 4;
T = 300 + 273.15;
P = 100;
spmd (n)
CP = py.importlib.import_module('CoolProp');
Fluid = CP.AbstractState("HEOS", 'water');
T = T + 10*spmdIndex;
...
end

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Distributed Arrays 的更多信息

标签

产品


版本

R2022b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by