Gromacs
2024.4
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Helper class that models an MD module that needs to make a subscription to ObservablesReducer
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Public Member Functions | |
Subscriber (int subscriberIndex, int numRanks) | |
Constructor. | |
void | makeSubscription (ObservablesReducerBuilder *observablesReducerBuilder) |
Make the subscription via the observablesReducerBuilder . | |
void | callbackWhenBufferAvailable (ObservablesReducerBuilder::CallbackToRequireReduction &&callbackToRequireReduction, ArrayRef< double > bufferView) |
Callback to receive data from the builder. | |
void | doSimulationWork (Step step, ReductionRequirement reductionRequirement) const |
Pretend to do some simulation work characteristic of step . | |
void | callbackAfterReduction (Step step) |
After the reduction, check the values for this subscriber are as expected. | |
Public Attributes | |
int | sizeRequired_ |
The number of doubles required to reduce. | |
ObservablesReducerBuilder::CallbackToRequireReduction | callbackToRequireReduction_ |
The callback used to require reduction. | |
ArrayRef< double > | communicationBuffer_ |
The buffer used for communication, supplied by an ObservablesReducer . | |
double | valueOffset_ |
Offset that differentiates the values reduced by each subscriber. | |
int | numRanks_ |
Number of ranks, used in constructing test expectations. | |
int | subscriberIndex_ |
Index within the group of subscribers. | |
Static Public Attributes | |
static constexpr int | s_subscriberBufferMinimumSize = 3 |
Ensure that each subscriber sends an interesting amount of data. | |
static constexpr double | s_subscriberOffset = 1000 |
Base value used to ensure the data reduced by each subscriber is distinct, to help diagnose bugs. More... | |
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Base value used to ensure the data reduced by each subscriber is distinct, to help diagnose bugs.
Also contributes to ensuring that the reduced total is never zero.
Note that in a real use case, the subscribers will generally be located in multiple modules.