[Bill_Yang]

Hi Arthur,

After running the tutorial 01, the hashtable insert of newKey is placed between key0 and key1. Is it possible to insert newKey in other location, i.e. after key1?

Many thanks.

[Artur]

Hash tables are unordered by definition, I'm afraid: https://en.wikipedia.org/wiki/Hash_table


You may always use two lists of different data types to associate strings and other data types, if needed.

[Bill_Yang]

Originally Posted by Artur

Hash tables are unordered by definition, I'm afraid: https://en.wikipedia.org/wiki/Hash_table


You may always use two lists of different data types to associate strings and other data types, if needed.

Thanks for your reply, Artur. It is very helpful.

[Bill_Yang]

Hi Artur,

I run the tutorial 5. At the end of parallel running.
The computation reminds me:

...
Finalising parallel run
3 more processes have sent help message help-btl-vader.txt / cma-permission-denied
Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages

I don't understand why I receive this message '3 more processes have sent help message help-btl-vader.txt '? Could you help with this?

Many thanks in advance.
Bill

[Tobi]

Hi Arthur,

again, many thanks for your tutorials. I love them and - honestly - I am starting to get ready for parallel programming using your stuff. Would be nice to have more parallel stuff out (or maybe its already most covered)

Thanks,
Tobi

[Artur]

Thanks for the kind words Tobi, glad you like the materials. I'd be happy to add more parallel materials, maybe even as a separate follow-up tutorial, but I'm not sure what would be the most useful to people. Perhaps the fvMatrix and how that is handled? (I don't honestly know that much about it myself, so would be interesting to learn that). Or maybe details of decomposition? If you have any thoughts, please feel free to share.


In any case, happy foaming!

A

[Tobi]

Some more advanced stuff. E.g. We use the sumOp<Type>() operator or maxOp<Type>() guy. So maybe some words about them. In patchProbes.C we have another one. So even though I am not familiar with parallel programming, it would be nice to know if these operators are coming from OF or e.g, openmpi and if we can reduce any kind of classes (with probably an own xyOp<Type> operator...)

[Artur]

Oh right, that's a good idea. I have written some custom operators like that, in fact, so might just be a case of copy and paste. I'll put that on my to-do list. Thanks for the suggestion!

[casseer15]

Thank you Artur. This will be very helpful for beginners like me.

[chrisyang]

Hi Artur,

Thanks so much for your great work! This saves me tons of time for struggling around different function object and class embedded under hood.

Looking for your new upcoming tutorials!

Cheers,
Chris