Method and system for integrating buffer views into buffer access operations in reconfigurable computing environments
A method and system for integrating buffer views into buffer access operations in reconfigurable computing environments. The method includes detecting, in a buffer allocation statement comprising a tensor indexing expression, a buffer view indicator and one or more buffer view parameters. The buffer view parameters are lowered into the tensor indexing expression, according to the buffer view indicator, to produce a modified tensor indexing expression. The buffer view indicator is removed from a buffer allocation statement to produce a modified buffer allocation statement and allocating a buffer according to the modified buffer allocation statement. The system implements the described method and further includes a non-transitory computer readable medium for executing the disclosed method.
1 . A buffer access configuration method for integrating buffer views into buffer access operations in a coarse-grained reconfigurable computing system, the method comprising:
detecting, in an instruction stream for a reconfigurable dataflow unit (RDU), a buffer allocation statement comprising a tensor indexing expression, a buffer view indicator and one or more buffer view parameters;
lowering the buffer view parameters into the tensor indexing expression according to the buffer view indicator to produce a modified tensor indexing expression;
removing the buffer view indicator from the buffer allocation statement to produce a modified buffer allocation statement comprising the modified tensor indexing expression;
allocating a buffer according to the modified buffer allocation statement;
generating configuration information for the allocated buffer; and
communicating the configuration information to the allocated buffer.
2 . The method of claim 1 , further comprising configuring the RDU according to the modified buffer allocation statement.
3 . The method of claim 2 , wherein configuring the RDU comprises configuring an address generator to execute the modified tensor indexing expression.
4 . The method of claim 2 , further comprising processing data with the RDU according to the modified buffer allocation statement.
5 . The method of claim 1 , wherein the buffer view indicator is selected from the group consisting of a slice view indicator, a repeat view indicator, a temporal tile view indicator, a reshape view indicator, a permute view indicator, a layout view indicator and a roll view indicator.
6 . The method of claim 1 , wherein the buffer view indicator is stackable with other buffer view indicators.
7 . A buffer access configuration system for integrating buffer views into buffer access operations in a coarse-grained reconfigurable computing system the system comprising:
an allocation statement detector for detecting, in an instruction stream for a reconfigurable dataflow unit (RDU), a buffer allocation statement comprising a tensor indexing expression, a buffer view indicator and one or more buffer view parameters;
an allocation statement modifier configured to lower the buffer view parameters into the tensor indexing expression according to the buffer view indicator to produce a modified tensor indexing expression;
the allocation statement modifier further configured to remove the buffer view indicator from the buffer allocation statement to produce a modified buffer allocation statement comprising the modified tensor indexing expression;
a buffer allocation module configured to allocate a buffer according to the modified buffer allocation statement;
a configuration module for generating configuration information for the allocated buffers; and
an RDU control module for communicating configuration information to the allocated buffers.
8 . The method of claim 7 , wherein the buffer allocation statement specifies a buffer read pattern or a buffer write pattern.
9 . The system of claim 8 , further comprising one or more RDUs for processing data according to the modified buffer allocation statement.
10 . The system of claim 9 , further comprising a configuration module for configuring the RDUs according to the modified buffer allocation statement.
11 . The system of claim 9 , wherein configuring the RDUs comprises configuring an address generator to execute the modified tensor indexing expression.
12 . The system of claim 8 , wherein the buffer view indicator is selected from the group consisting of a slice view indicator, a repeat view indicator, a temporal tile view indicator, a reshape view indicator, a permute view indicator, a layout view indicator and a roll view indicator.
13 . The system of claim 8 , wherein the buffer view indicator is stackable with other buffer view indicators.
14 . The system of claim 8 , wherein the buffer allocation statement specifies a buffer read pattern or a buffer write pattern.
15 . A non-transitory computer readable medium having instructions encoded thereon to execute a buffer access configuration method for integrating buffer views into buffer access operations in a coarse-grained reconfigurable computing system, the method comprising:
detecting, in an instruction stream for a reconfigurable dataflow unit (RDU), a buffer allocation statement comprising a tensor indexing expression, a buffer view indicator and one or more buffer view parameters;
lowering the buffer view parameters into the tensor indexing expression according to the buffer view indicator to produce a modified tensor indexing expression;
removing the buffer view indicator from the buffer allocation statement to produce a modified buffer allocation statement comprising the modified tensor indexing expression;
allocating a buffer according to the modified buffer allocation statement;
generating configuration information for the allocated buffer; and
communicating the configuration information to the allocated buffer.
16 . The non-transitory computer readable medium of claim 15 , wherein the method further comprises configuring the RDU according to the modified buffer allocation statement.
17 . The non-transitory computer readable medium of claim 16 , wherein configuring the RDU comprises configuring an address generator to execute the modified tensor indexing expression.
18 . The non-transitory computer readable medium of claim 15 , wherein the method further comprises processing data with the RDU according to the modified buffer allocation statement.
19 . The non-transitory computer readable medium of claim 15 , wherein the buffer view indicator is selected from the group consisting of a slice view indicator, a repeat view indicator, a temporal tile view indicator, a reshape view indicator, a permute view indicator, a layout view indicator and a roll view indicator.
20 . The non-transitory computer readable medium of claim 15 , wherein the buffer view indicator is stackable with other buffer view indicators.