Plain – Parallelism Part 1

We did earlier show how we could call a function in a different module. The previous example illustrated a 1:1 call between modules. What I want to do now is a 1:20 call – I want to make 1 call that execute a function in 20 different modules returning different results.

use System
Module ComplexMath
            Func ComputeMe(uint32 x)
                        Raise Continue(x)
            Event Continue (uint32 x)
            End
End

use System
use ComplexMath
Module MyModule
            int32 arr[30]
            int x     
            for x=0 to 30
                        arr[x] = ComputeMe(x)
            end
end

This example will not work! It will call ComputeMe 30 times in sequence with no parallelism involved. What I need is a way to request access to 20 x ComplexMath modules simultaneously. I am actually attempting 30, but the last 10 will be in seuence waiting.

This illustrate what I want to do – it is a simple example where I call 20 remote modules and each return the number I give them back into the correct table entry.

use ComplexMath[20] 

This solved the first issue of accessing up to 20 x modules. I create an array and establish a rule that usage from arrays are dynamic by default. Dynamic – as in allocated as I need them so we can access resources in a pool shared with others.

use ComplexMath[20]  static

This however allocate 20 resources that always are allocated to us – no run-time DRA. This will be faster as it don’t need to allocate resources run-time, but it will not share the resources with others.

But, how do I start 20 calls and how do I synchronize their end? Also – I will sometimes require that we call a function and don’t wait on the answer – but as the answer returns I probably would like to process the events. I have to leave these questions in the open for now.

to be continued in part 2