Hi,
I have a question regarding
ExecutionEngine on multicore machines.
Say I have n different Function objects
that I want to execute simultaneously on a multicore
machine. So, one would want to create n different
instances of ExecutionEngine and run each function.
But, if I understand correctly, there can only be one
instance of ExecutionEngine, so there would have to be
a locking mechanism or execute everything
sequentially.
I have the following questions:
1. What's the best way to run many different functions
in multiple threads using a single ExecutionEngine?
2. What's the reason for having only a single engine?
3. Are there any plans for the future that might
allow multiple instances of ExecutionEngine?
Marko
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On Mon, 14 Apr 2008, brdavs wrote:> Say I have n different Function objects > that I want to execute simultaneously on a multicore > machine. So, one would want to create n different > instances of ExecutionEngine and run each function. > But, if I understand correctly, there can only be one > instance of ExecutionEngine, so there would have to be > a locking mechanism or execute everything > sequentially.Right.> I have the following questions: > 1. What's the best way to run many different functions > in multiple threads using a single ExecutionEngine?You shouldn't have to do anything special. It only holds the lock when jiting, not when executing the code.> 2. What's the reason for having only a single engine?It makes the internal implementation more efficient.> 3. Are there any plans for the future that might > allow multiple instances of ExecutionEngine?no -Chris -- http://nondot.org/sabre/ http://llvm.org/