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Opened 15 years ago

Closed 15 years ago

#226 closed defect (fixed)

Low-level API for insider patch creation

Reported by: hauma Owned by: hauma
Priority: normal Milestone: 2.0
Component: uka.karo Version: 1.09b
Severity: normal Keywords:
Cc:

Description

Distribution-aware classes (e.g. collective arrays) need custom-tailored routines for patch creation. Patch creation methods for those classes must be able to decide, to which rank a patch is sent and from which rank a patch is currently received. For performance reasons, it may be inadequate for custom patch routines to rely on the high-level PatchOutput interface. Instead, direct access to the underlying marshal streams should be provided.

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Change History (1)

comment:1 Changed 15 years ago by hauma

  • Resolution set to fixed
  • Status changed from new to closed

In [2824], the interfaces PatchInput and PatchOutput are extended. PatchOutput gets the additional method:

MarshalStream getOutput(int rank);

This method allows to obtain the unterlying marshal stream that transports the patch for the current object to the given rank.

PatchInput is extended with the two methods:

UnmarshalStream getInput();
int getFromRank();

The first returns the underlying unmarshal stream and the second returns the rank from wich the patch is received.

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