[EllenW]

Hi,

I need to transfer a 2-d array from the host to nodes, but I didn't find any such examples in the udf manual. suppose my array is A[20][4], how should I write for this: host_to_node_real(A, 20,4)?
could anyone please help me on this? Thank you so much.

ellen

[coglione]

Hello Ellen,

i guess you have to split your multi-dimensional array into e.g. 4 1-d arrays of length 20 and use the common host-to-node macros. Each node will have to resemble the full array again.
This is really nasty, thus if you find a more elegant way let me know.

cheers

[gemini]

Hi,

I think serial data transfer method using standard macros located inside a loop structure can be used. If you dont have a solution yet you can try this.

regards

[EllenW]

thank you for your reply, coglione. There seems to be no direct way for this transfer operation... I'll convert my 2d array as you suggested then.

thanks,
ellen

[EllenW]

I just saw your reply, gemini, thanks. but I'm not quite sure how to carry out your suggested method, could you elaborate more or give an example?

thank you.

[gemini]

Originally Posted by EllenW

I just saw your reply, gemini, thanks. but I'm not quite sure how to carry out your suggested method, could you elaborate more or give an example?

thank you.

Hi ElllenW,

I'm sorry, I don't have a ready example for you, however, you can start with the section titled as "7.5.8 Message Passing Macros" in UDF manual (/help/html/udf/node214.htm) in which low-level message passing macros are described and there is an example about data transfer between nodes and between node0 and host. I think that section will be helpful. Btw, if I reach any example about your case, I'll write here.

Good luck