Process 2 is active. MATVEC - Master process: A FORTRAN 90 program, using MPI to compute a matrix-vector product c = A * b. The number of processes is 4 Process 0 is active. The number of rows is 100 The number of columns is 50 Process 1 is active. Process 3 is active. MATVEC - Master process: Product vector c = A * b (Should be zero, except for a 1 in entry 17 1 -0.282326E-15 2 0.537764E-16 3 0.667869E-16 4 -0.641848E-16 5 -0.433681E-16 6 0.338271E-15 7 -0.640113E-15 8 0.516948E-15 9 0.315720E-15 10 -0.291434E-15 11 0.381639E-15 12 0.475314E-15 13 -0.270617E-15 14 0.145717E-15 15 -0.763278E-16 16 0.350414E-15 17 1.00000 18 -0.166533E-15 19 0.173472E-15 20 -0.673073E-15 21 0.138778E-15 22 -0.104083E-15 23 -0.277556E-16 24 -0.506539E-15 25 0.971445E-16 26 0.201228E-15 27 0.104083E-15 28 -0.756339E-15 29 0.346945E-16 30 0.110328E-14 31 -0.187350E-15 32 0.534295E-15 33 0.180411E-15 34 0.239392E-15 35 0.745931E-15 36 -0.253270E-15 37 -0.301842E-15 38 -0.172085E-14 39 -0.478784E-15 40 -0.159595E-15 41 0.516948E-15 42 0.513478E-15 43 -0.110328E-14 44 0.315720E-15 45 0.650521E-15 46 0.113971E-14 47 0.216840E-15 48 0.584602E-15 49 -0.580265E-15 50 -0.651389E-15 51 0.653234E-15 52 -0.117094E-15 53 0.103303E-14 54 -0.791034E-15 55 -0.317454E-15 56 0.902056E-15 57 -0.212504E-14 58 0.277556E-16 59 -0.149186E-15 60 0.163064E-15 61 -0.669603E-15 62 0.242167E-14 63 0.190820E-15 64 0.110675E-14 65 0.152656E-15 66 -0.213371E-14 67 0.116920E-14 68 0.118655E-14 69 -0.388578E-15 70 0.895117E-15 71 -0.978384E-15 72 -0.208167E-15 73 0.147798E-14 74 0.214412E-14 75 -0.210942E-14 76 0.138778E-16 77 -0.534295E-15 78 0.162370E-14 79 -0.624500E-15 80 0.499600E-15 81 -0.226208E-14 82 0.146411E-14 83 -0.102696E-14 84 0.323006E-14 85 -1.00000 86 -0.577663E-14 87 0.208861E-14 88 0.648787E-15 89 0.171391E-14 90 0.149186E-15 91 0.527356E-15 92 -0.947159E-15 93 -0.319189E-15 94 -0.348332E-14 95 0.856953E-15 96 0.464906E-15 97 -0.138951E-14 98 -0.266454E-14 99 0.990527E-15 100 -0.176248E-14 MATVEC - Master process: Normal end of execution.