mpi.exit
(Package: Rmpi) :
Exit MPI Environment
mpi.exit terminates MPI execution environment and detaches the library Rmpi. After that, you can still work on R.
● Data Source:
CranContrib
● Keywords: utilities
● Alias: mpi.exit, mpi.quit
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mpi.cart.rank translates a Cartesian topology coordinate to its rank.
● Data Source:
CranContrib
● Keywords: interface
● Alias: mpi.cart.rank
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mpi.bcast.Robj
(Package: Rmpi) :
Extensions of MPI_Bcast API
mpi.bcast.Robj and mpi.bcast.Robj2slave are used to move a general R object around among master and all slaves.
● Data Source:
CranContrib
● Keywords: utilities
● Alias: mpi.bcast.Rfun2slave, mpi.bcast.Robj, mpi.bcast.Robj2slave, mpi.bcast.data2slave
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mpi.parSim
(Package: Rmpi) :
Parallel Monte Carlo Simulation
Carry out parallel Monte Carlo simulation on R slaves spawned by using slavedaemon.R script and all executed results are returned back to master.
● Data Source:
CranContrib
● Keywords: utilities
● Alias: mpi.parSim
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mpi.applyLB
(Package: Rmpi) :
(Load balancing) parallel apply
(Load balancing) parallellapply and related functions.
● Data Source:
CranContrib
● Keywords: utilities
● Alias: mpi.applyLB, mpi.parApply, mpi.parCapply, mpi.parLapply, mpi.parMM, mpi.parRapply, mpi.parReplicate, mpi.parSapply
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mpi.universe.size returns the total number of CPUs available in a cluster. Some MPI implements may not have this MPI call available.
● Data Source:
CranContrib
● Keywords: interface
● Alias: mpi.universe.size
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mpi.gather.Robj
(Package: Rmpi) :
Extentions of MPI_Gather and MPI_Allgather APIs
mpi.gather.Robj gathers each member's object to the member specified by the argument root. The root member receives the objects as a list. mpi.allgather.Robj is the same as mpi.gather.Robj except that all members receive the result instead of just the root.
● Data Source:
CranContrib
● Keywords: interface
● Alias: mpi.allgather.Robj, mpi.gather.Robj
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mpi.scatter.Robj
(Package: Rmpi) :
Extensions of MPI_ SCATTER and MPI_SCATTERV
mpi.scatter.Robj and mpi.scatter.Robj2slave are used to scatter a list to all members. They are more efficient than using any parallel apply functions.
● Data Source:
CranContrib
● Keywords: utilities
● Alias: mpi.scatter.Robj, mpi.scatter.Robj2slave
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mpi.send
(Package: Rmpi) :
MPI_Send, MPI_Isend, MPI_Recv, and MPI_Irecv APIs
The pair mpi.send and mpi.recv are two most used blocking calls for point-to-point communications. An int, double or char vector can be transmitted from any source to any destination.
● Data Source:
CranContrib
● Keywords: interface
● Alias: mpi.irecv, mpi.isend, mpi.recv, mpi.send
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mpi.get.processor.name returns the host name (a string) where it is executed.
● Data Source:
CranContrib
● Keywords: interface
● Alias: mpi.get.processor.name
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