Mpi
mpi
t_bool: IntegerType = IntegerType(1, Signedness.SIGNLESS)
module-attribute
AnyNumericType = AnyFloat | IntegerType
module-attribute
VectorWrappable = RequestType | StatusType | DataType
module-attribute
VectorWrappableConstr = base(RequestType) | base(StatusType) | base(DataType)
module-attribute
MPI = Dialect('mpi', [CommSizeOp, IsendOp, IrecvOp, TestOp, RecvOp, SendOp, ReduceOp, AllreduceOp, BcastOp, WaitOp, WaitallOp, GetStatusFieldOp, InitOp, FinalizeOp, CommRankOp, UnwrapMemRefOp, GetDtypeOp, AllocateTypeOp, VectorGetOp, NullRequestOp, GatherOp], [OperationType, RequestType, StatusType, DataType, VectorType])
module-attribute
OperationType
dataclass
Bases: ParametrizedAttribute, TypeAttribute
This type represents the MPI_Op type.
They are used by the reduction MPI functions
Source code in xdsl/dialects/mpi.py
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name = 'mpi.operation'
class-attribute
instance-attribute
op_str: StringAttr
instance-attribute
MpiOp
A collection of MPI_Op types used for
Source code in xdsl/dialects/mpi.py
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MPI_MAX = OperationType(StringAttr('MPI_MAX'))
class-attribute
instance-attribute
MPI_MIN = OperationType(StringAttr('MPI_MIN'))
class-attribute
instance-attribute
MPI_SUM = OperationType(StringAttr('MPI_SUM'))
class-attribute
instance-attribute
MPI_PROD = OperationType(StringAttr('MPI_PROD'))
class-attribute
instance-attribute
MPI_LAND = OperationType(StringAttr('MPI_LAND'))
class-attribute
instance-attribute
MPI_BAND = OperationType(StringAttr('MPI_BAND'))
class-attribute
instance-attribute
MPI_LOR = OperationType(StringAttr('MPI_LOR'))
class-attribute
instance-attribute
MPI_BOR = OperationType(StringAttr('MPI_BOR'))
class-attribute
instance-attribute
MPI_LXOR = OperationType(StringAttr('MPI_LXOR'))
class-attribute
instance-attribute
MPI_BXOR = OperationType(StringAttr('MPI_BXOR'))
class-attribute
instance-attribute
MPI_MINLOC = OperationType(StringAttr('MPI_MINLOC'))
class-attribute
instance-attribute
MPI_MAXLOC = OperationType(StringAttr('MPI_MAXLOC'))
class-attribute
instance-attribute
MPI_REPLACE = OperationType(StringAttr('MPI_REPLACE'))
class-attribute
instance-attribute
MPI_NO_OP = OperationType(StringAttr('MPI_NO_OP'))
class-attribute
instance-attribute
RequestType
dataclass
Bases: ParametrizedAttribute, TypeAttribute
This type represents the MPI_Request type.
They are used by the asynchronous MPI functions
Source code in xdsl/dialects/mpi.py
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name = 'mpi.request'
class-attribute
instance-attribute
StatusType
dataclass
Bases: ParametrizedAttribute, TypeAttribute
This type represents the MPI_Status type.
It's a struct containing status information for requests.
Source code in xdsl/dialects/mpi.py
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name = 'mpi.status'
class-attribute
instance-attribute
DataType
dataclass
Bases: ParametrizedAttribute, TypeAttribute
This type represents MPI_Datatype
Source code in xdsl/dialects/mpi.py
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name = 'mpi.datatype'
class-attribute
instance-attribute
VectorType
dataclass
Bases: ParametrizedAttribute, TypeAttribute, Generic[_VectorT]
This type holds multiple MPI types
Source code in xdsl/dialects/mpi.py
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name = 'mpi.vector'
class-attribute
instance-attribute
wrapped_type: _VectorT
instance-attribute
StatusTypeField
Bases: Enum
This enum lists all fields in the MPI_Status struct
Source code in xdsl/dialects/mpi.py
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MPI_SOURCE = 'MPI_SOURCE'
class-attribute
instance-attribute
MPI_TAG = 'MPI_TAG'
class-attribute
instance-attribute
MPI_ERROR = 'MPI_ERROR'
class-attribute
instance-attribute
MPIBaseOp
dataclass
Bases: IRDLOperation, ABC
Base class for MPI Operations
Source code in xdsl/dialects/mpi.py
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ReduceOp
Bases: MPIBaseOp
This wraps the MPI_Reduce function (blocking reduction)
See external documentation.
The MPI_Reduce Function Docs:
int MPI_Reduce(const void sendbuf, void recvbuf, int count, MPI_Datatype datatype, MPI_Op op, int root, MPI_Comm comm)
sendbuf: address of send buffer (choice)
recvbuf: address of receive buffer (choice)
count: number of elements in send buffer (non-negative integer)
datatype: data type of elements of send buffer (handle)
op: reduce operation (handle)
root: rank of root process (integer)
comm: communicator (handle)
Our Abstraction:
- We omit the possibility of using multiple communicators, defaulting
to MPI_COMM_WORLD
Source code in xdsl/dialects/mpi.py
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name = 'mpi.reduce'
class-attribute
instance-attribute
send_buffer = operand_def(Attribute)
class-attribute
instance-attribute
recv_buffer = operand_def(Attribute)
class-attribute
instance-attribute
count = operand_def(i32)
class-attribute
instance-attribute
datatype = operand_def(DataType)
class-attribute
instance-attribute
operationtype = attr_def(OperationType)
class-attribute
instance-attribute
root = operand_def(i32)
class-attribute
instance-attribute
__init__(send_buffer: SSAValue | Operation, recv_buffer: SSAValue | Operation, count: SSAValue | Operation, datatype: SSAValue | Operation, operationtype: OperationType, root: SSAValue | Operation)
Source code in xdsl/dialects/mpi.py
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AllreduceOp
Bases: MPIBaseOp
This wraps the MPI_Allreduce function (blocking all reduction)
See external documentation.
The MPI_Allreduce Function Docs:
int MPI_Allreduce(const void sendbuf, void recvbuf, int count, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm)
sendbuf: address of send buffer (choice)
recvbuf: address of receive buffer (choice)
count: number of elements in send buffer (non-negative integer)
datatype: data type of elements of send buffer (handle)
op: reduce operation (handle)
comm: communicator (handle)
Our Abstraction:
- We omit the possibility of using multiple communicators, defaulting
to MPI_COMM_WORLD
Source code in xdsl/dialects/mpi.py
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name = 'mpi.allreduce'
class-attribute
instance-attribute
send_buffer = opt_operand_def(Attribute)
class-attribute
instance-attribute
recv_buffer = operand_def(Attribute)
class-attribute
instance-attribute
count = operand_def(i32)
class-attribute
instance-attribute
datatype = operand_def(DataType)
class-attribute
instance-attribute
operationtype = attr_def(OperationType)
class-attribute
instance-attribute
__init__(send_buffer: SSAValue | Operation | None, recv_buffer: SSAValue | Operation, count: SSAValue | Operation, datatype: SSAValue | Operation, operationtype: OperationType)
Source code in xdsl/dialects/mpi.py
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BcastOp
Bases: MPIBaseOp
This wraps the MPI_Bcast function (blocking broadcast)
See external documentation.
The MPI_Bcast Function Docs:
int MPI_Bcast(void *buffer, int count, MPI_Datatype datatype, int root, MPI_Comm comm)
buffer: starting address of buffer (choice)
count: number of elements in send buffer (non-negative integer)
datatype: data type of elements of send buffer (handle)
root: rank of broadcast root (integer)
comm: communicator (handle)
Our Abstraction:
- We omit the possibility of using multiple communicators, defaulting
to MPI_COMM_WORLD
Source code in xdsl/dialects/mpi.py
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name = 'mpi.bcast'
class-attribute
instance-attribute
buffer = operand_def(Attribute)
class-attribute
instance-attribute
count = operand_def(i32)
class-attribute
instance-attribute
datatype = operand_def(DataType)
class-attribute
instance-attribute
root = operand_def(i32)
class-attribute
instance-attribute
__init__(buffer: SSAValue | Operation, count: SSAValue | Operation, datatype: SSAValue | Operation, root: SSAValue | Operation)
Source code in xdsl/dialects/mpi.py
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IsendOp
Bases: MPIBaseOp
This wraps the MPI_Isend function (nonblocking send)
See external documentation.
The MPI_Isend Function Docs:
int MPI_Isend(const void buf, int count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm, MPI_Request request)
- buf: Initial address of send buffer (choice).
- count: Number of elements in send buffer (integer).
- datatype: Datatype of each send buffer element (handle).
- dest: Rank of destination (integer).
- tag: Message tag (integer).
- comm: Communicator (handle).
Our Abstraction:
- We omit the possibility of using multiple communicators, defaulting
to MPI_COMM_WORLD
Source code in xdsl/dialects/mpi.py
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name = 'mpi.isend'
class-attribute
instance-attribute
buffer = operand_def(Attribute)
class-attribute
instance-attribute
count = operand_def(i32)
class-attribute
instance-attribute
datatype = operand_def(DataType)
class-attribute
instance-attribute
dest = operand_def(i32)
class-attribute
instance-attribute
tag = operand_def(i32)
class-attribute
instance-attribute
request = operand_def(RequestType)
class-attribute
instance-attribute
__init__(buffer: SSAValue | Operation, count: SSAValue | Operation, datatype: SSAValue | Operation, dest: SSAValue | Operation, tag: SSAValue | Operation, request: SSAValue | Operation)
Source code in xdsl/dialects/mpi.py
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SendOp
Bases: MPIBaseOp
This wraps the MPI_Send function (blocking send)
See external documentation.
The MPI_Send Function Docs:
int MPI_Send(const void *buf, int count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm)
- buf: Initial address of send buffer (choice).
- count: Number of elements in send buffer (non-negative integer).
- datatype: Datatype of each send buffer element (handle).
- dest: Rank of destination (integer).
- tag: Message tag (integer).
- comm: Communicator (handle).
Our Abstraction:
- We omit the possibility of using multiple communicators, defaulting
to MPI_COMM_WORLD
Source code in xdsl/dialects/mpi.py
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name = 'mpi.send'
class-attribute
instance-attribute
buffer = operand_def(Attribute)
class-attribute
instance-attribute
count = operand_def(i32)
class-attribute
instance-attribute
datatype = operand_def(DataType)
class-attribute
instance-attribute
dest = operand_def(i32)
class-attribute
instance-attribute
tag = operand_def(i32)
class-attribute
instance-attribute
__init__(buffer: SSAValue | Operation, count: SSAValue | Operation, datatype: SSAValue | Operation, dest: SSAValue | Operation, tag: SSAValue | Operation)
Source code in xdsl/dialects/mpi.py
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IrecvOp
Bases: MPIBaseOp
This wraps the MPI_Irecv function (nonblocking receive).
See external documentation.
The MPI_Irecv Function Docs:
int MPI_Irecv(void buf, int count, MPI_Datatype datatype, int source, int tag, MPI_Comm comm, MPI_Request request)
- buf: Initial address of receive buffer (choice).
- count: Number of elements in receive buffer (integer).
- datatype: Datatype of each receive buffer element (handle).
- source: Rank of source (integer).
- tag: Message tag (integer).
- comm: Communicator (handle).
- request: Communication request (handle).
Our Abstractions:
- We omit the possibility of using multiple communicators, defaulting
to MPI_COMM_WORLD
Source code in xdsl/dialects/mpi.py
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name = 'mpi.irecv'
class-attribute
instance-attribute
buffer = operand_def(Attribute)
class-attribute
instance-attribute
count = operand_def(i32)
class-attribute
instance-attribute
datatype = operand_def(DataType)
class-attribute
instance-attribute
source = operand_def(i32)
class-attribute
instance-attribute
tag = operand_def(i32)
class-attribute
instance-attribute
request = operand_def(RequestType)
class-attribute
instance-attribute
__init__(buffer: SSAValue | Operation, count: SSAValue | Operation, datatype: SSAValue | Operation, source: SSAValue | Operation, tag: SSAValue | Operation, request: SSAValue | Operation)
Source code in xdsl/dialects/mpi.py
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RecvOp
Bases: MPIBaseOp
This wraps the MPI_Recv function (blocking receive).
See external documentation.
The MPI_Recv Function Docs:
int MPI_Recv(void buf, int count, MPI_Datatype datatype, int source, int tag, MPI_Comm comm, MPI_Status status)
- buf: Initial address of receive buffer (choice).
- count: Number of elements in receive buffer (integer).
- datatype: Datatype of each receive buffer element (handle).
- source: Rank of source (integer).
- tag: Message tag (integer).
- comm: Communicator (handle).
- status: status object (Status).
Our Abstractions:
- We omit the possibility of using multiple communicators, defaulting
to MPI_COMM_WORLD
Source code in xdsl/dialects/mpi.py
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name = 'mpi.recv'
class-attribute
instance-attribute
buffer = operand_def(Attribute)
class-attribute
instance-attribute
count = operand_def(i32)
class-attribute
instance-attribute
datatype = operand_def(DataType)
class-attribute
instance-attribute
source = operand_def(i32)
class-attribute
instance-attribute
tag = operand_def(i32)
class-attribute
instance-attribute
status = opt_result_def(StatusType)
class-attribute
instance-attribute
__init__(buffer: SSAValue | Operation, count: SSAValue | Operation, datatype: SSAValue | Operation, source: SSAValue | Operation, tag: SSAValue | Operation, ignore_status: bool = True)
Source code in xdsl/dialects/mpi.py
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TestOp
Bases: MPIBaseOp
Class for wrapping the MPI_Test function (test for completion of request)
See external documentation.
The MPI_Test Function Docs:
int MPI_Test(MPI_Request request, int flag, MPI_Status *status)
- request: Communication request (handle)
- flag: true if operation completed (logical)
- status: Status object (Status)
Source code in xdsl/dialects/mpi.py
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name = 'mpi.test'
class-attribute
instance-attribute
request = operand_def(RequestType)
class-attribute
instance-attribute
flag = result_def(t_bool)
class-attribute
instance-attribute
status = result_def(StatusType)
class-attribute
instance-attribute
__init__(request: Operand)
Source code in xdsl/dialects/mpi.py
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WaitOp
Bases: MPIBaseOp
Class for wrapping the MPI_Wait function (blocking wait for request)
See external documentation.
The MPI_Test Function Docs:
int MPI_Wait(MPI_Request request, MPI_Status status)
- request: Request (handle)
- status: Status object (Status)
Source code in xdsl/dialects/mpi.py
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name = 'mpi.wait'
class-attribute
instance-attribute
request = operand_def(RequestType)
class-attribute
instance-attribute
status = opt_result_def(StatusType)
class-attribute
instance-attribute
__init__(request: Operand, ignore_status: bool = True)
Source code in xdsl/dialects/mpi.py
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WaitallOp
Bases: MPIBaseOp
Class for wrapping the MPI_Waitall function (blocking wait for requests)
See external documentation.
The MPI_Test Function Docs:
int MPI_Waitall(int count, MPI_Request array_of_requests[], MPI_Status *array_of_statuses)
- count: Number of handles
- array_of_requests: Request handles
- array_of_statuses: Status objects
Source code in xdsl/dialects/mpi.py
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name = 'mpi.waitall'
class-attribute
instance-attribute
requests = operand_def(VectorType[RequestType])
class-attribute
instance-attribute
count = operand_def(i32)
class-attribute
instance-attribute
statuses = opt_result_def(VectorType[StatusType])
class-attribute
instance-attribute
__init__(requests: Operand, count: Operand, ignore_status: bool = True)
Source code in xdsl/dialects/mpi.py
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GetStatusFieldOp
Bases: MPIBaseOp
Accessors for the MPI_Status struct
This allows access to the three integer properties in the struct called - MPI_SOURCE - MPI_TAG - MPI_ERROR
All fields are of type int.
Source code in xdsl/dialects/mpi.py
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name = 'mpi.status.get'
class-attribute
instance-attribute
status = operand_def(StatusType)
class-attribute
instance-attribute
field = attr_def(StringAttr)
class-attribute
instance-attribute
result = result_def(i32)
class-attribute
instance-attribute
__init__(status_obj: Operand, field: StatusTypeField)
Source code in xdsl/dialects/mpi.py
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CommRankOp
Bases: MPIBaseOp
Represents the MPI_Comm_size(MPI_Comm comm, int *rank) function call which returns the rank of the communicator
Currently limited to COMM_WORLD
Source code in xdsl/dialects/mpi.py
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name = 'mpi.comm.rank'
class-attribute
instance-attribute
rank = result_def(i32)
class-attribute
instance-attribute
__init__()
Source code in xdsl/dialects/mpi.py
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CommSizeOp
Bases: MPIBaseOp
Represents the MPI_Comm_size(MPI_Comm comm, int *size) function call which returns the size of the communicator
Currently limited to COMM_WORLD
Source code in xdsl/dialects/mpi.py
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name = 'mpi.comm.size'
class-attribute
instance-attribute
size = result_def(i32)
class-attribute
instance-attribute
__init__()
Source code in xdsl/dialects/mpi.py
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InitOp
dataclass
Bases: MPIBaseOp
This represents a bare MPI_Init call with both args being nullptr
Source code in xdsl/dialects/mpi.py
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name = 'mpi.init'
class-attribute
instance-attribute
FinalizeOp
dataclass
Bases: MPIBaseOp
This represents an MPI_Finalize call with both args being nullptr
Source code in xdsl/dialects/mpi.py
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name = 'mpi.finalize'
class-attribute
instance-attribute
UnwrapMemRefOp
Bases: MPIBaseOp
This Op can be used as a helper to get memrefs into MPI calls.
It takes any MemRef as input, and returns an llvm.ptr, element count and MPI_Datatype.
Source code in xdsl/dialects/mpi.py
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name = 'mpi.unwrap_memref'
class-attribute
instance-attribute
ref = operand_def(MemRefType[AnyNumericType])
class-attribute
instance-attribute
ptr = result_def(llvm.LLVMPointerType)
class-attribute
instance-attribute
len = result_def(i32)
class-attribute
instance-attribute
type = result_def(DataType)
class-attribute
instance-attribute
__init__(ref: SSAValue | Operation)
Source code in xdsl/dialects/mpi.py
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GetDtypeOp
Bases: MPIBaseOp
This op is used to convert MLIR types to MPI_Datatype constants.
So, e.g. if you want to get the MPI_Datatype for an i32 you can use
%dtype = "mpi.get_dtype"() {"dtype" = i32} : () -> mpi.datatype
to get the magic constant. See _MPIToLLVMRewriteBase._translate_to_mpi_type
docstring for more detail on which types are supported.
Source code in xdsl/dialects/mpi.py
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name = 'mpi.get_dtype'
class-attribute
instance-attribute
dtype = attr_def()
class-attribute
instance-attribute
result = result_def(DataType)
class-attribute
instance-attribute
__init__(dtype: Attribute)
Source code in xdsl/dialects/mpi.py
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AllocateTypeOp
Bases: MPIBaseOp
This op is used to allocate a specific MPI dialect type with a set size, returning this in an MPI vector of that type
This is useful as it means we can, in a self contained manner, store things like requests, statuses etc. It accepts the base type that the array will contain, the number of elements and an optional 'bindc_name' which contains the name of the variable that this is allocating
Source code in xdsl/dialects/mpi.py
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name = 'mpi.allocate'
class-attribute
instance-attribute
bindc_name = opt_attr_def(StringAttr)
class-attribute
instance-attribute
dtype = attr_def(VectorWrappableConstr)
class-attribute
instance-attribute
count = operand_def(i32)
class-attribute
instance-attribute
result = result_def(VectorType)
class-attribute
instance-attribute
__init__(dtype: type[VectorWrappable], count: SSAValue | Operation, bindc_name: StringAttr | None = None)
Source code in xdsl/dialects/mpi.py
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VectorGetOp
Bases: MPIBaseOp
This op will retrieve an element of an MPI vector, it accepts the vector as an argument and the element index
Source code in xdsl/dialects/mpi.py
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name = 'mpi.vector_get'
class-attribute
instance-attribute
vect = operand_def(VectorType)
class-attribute
instance-attribute
element = operand_def(i32)
class-attribute
instance-attribute
result = result_def(VectorWrappableConstr)
class-attribute
instance-attribute
__init__(vect: SSAValue | Operation, element: SSAValue | Operation)
Source code in xdsl/dialects/mpi.py
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NullRequestOp
Bases: MPIBaseOp
This sets a given request object to the MPI_REQUEST_NULL magic value.
Due to restrictions in the current MPI dialect, we can't return a new request object here. That will be fixed soon though!
Source code in xdsl/dialects/mpi.py
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name = 'mpi.request_null'
class-attribute
instance-attribute
request = operand_def(RequestType)
class-attribute
instance-attribute
__init__(req: SSAValue | Operation)
Source code in xdsl/dialects/mpi.py
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GatherOp
Bases: MPIBaseOp
This is used to gather data into one big buffer.
int MPI_Gather(const void sendbuf, int sendcount, MPI_Datatype sendtype, void recvbuf, int recvcount, MPI_Datatype recvtype, int root, MPI_Comm comm)
- sendbuf, sendcount, sendtype: info on the buffer to be sent
- recvbuf, recvcount, recvtype: info on the gather buffer
- root: the rank that receives all the data
- comm: the communicator to use
Note: recvcount * sizeof(recvtype) == sendcount * sizeof(sendtype) * N where N is the number of nodes participating in the gather.
Note that the data in the recvbuff will not be a nice grid, instead it will contain the sent buffers in order of rank.
Source code in xdsl/dialects/mpi.py
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name = 'mpi.gather'
class-attribute
instance-attribute
sendbuf = operand_def(llvm.LLVMPointerType)
class-attribute
instance-attribute
sendcount = operand_def(i32)
class-attribute
instance-attribute
sendtype = operand_def(DataType)
class-attribute
instance-attribute
recvbuf = operand_def(llvm.LLVMPointerType)
class-attribute
instance-attribute
recvcount = operand_def(i32)
class-attribute
instance-attribute
recvtype = operand_def(DataType)
class-attribute
instance-attribute
root = operand_def(i32)
class-attribute
instance-attribute
__init__(sendbuf: SSAValue | Operation, sendcount: SSAValue | Operation, sendtype: SSAValue | Operation, recvbuf: SSAValue | Operation, recvcount: SSAValue | Operation, recvtype: SSAValue | Operation, root: SSAValue | Operation)
Source code in xdsl/dialects/mpi.py
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