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I just cant understand whats the diffrence between them...
is SPMD is in the programming level and SIMD in the hardware level ?
example would be good !
thanks
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The main difference between SIMD and MIMD is that, SIMD has single decoder. Whereas MIMD have multiple decoders.
• Threads. • Message Passing. • Single Program-Multiple Data (SPMD) vs. Multiple Program-Multiple Data (MPMD)
SISD (Single Instruction, Single Data) refers to the traditional von Neumann architecture where a single sequential processing element (PE) operates on a single stream of data. • SIMD (Single Instruction, Multiple Data) performs the same operation on multiple data items simultaneously.
Single Instruction, Multiple Data (SIMD) units refer to hardware components that perform the same operation on multiple data operands concurrently.
SIMD is vectorization at the instruction level - each CPU instruction processes multiple data elements.
SPMD is a much higher level abstraction where processes or programs are split across multiple processors and operate on different subsets of the data.
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