Introduction to MPI

Fortran and C

DATA TYPES

Derived Data Types

Compiling and running

Compiling contd….

Compiling contd: a makefile

Running the job

Running (contd)

Running (contd)

Killing jobs cleanly

Environment Routines

More environment routines

Back to MPI Routines

Point to Point Routines

Buffering

Point to Point (contd)

Synchronous Routines

Blocking Routines

Non-blocking Routines

Non-blocking Routines(contd)

Buffered Send

Combined Send/Receive

Another Combined Send/Recv

Ready Send

Collective Routines

Slide 27

Slide 28

Slide 29

Slide 30

Slide 31

Slide 32

Slide 33

Matrix Multiplication

Matrix multiplication

Solution - 1

"y"

Final step

Second Solution

Second Soln (contd)

Jacobi Iteration – A Grand Synthesis

Slide 42

Jacobi iteration…

Mean value theorem

"Consider approximating the manifold by..."

Slide 46

Relaxation Algorithm

2-d example

Further parallelism

Improved algorithms