Demo: ./pthread_demo:
GraphBLAS is using an OpenMP critical section
to synchronize user threads.
User threads in this program are POSIX pthreads.

================= worker 1 starts:

================= worker 0 starts:

================= worker 2 starts:

================= worker 3 starts:

================= worker 4 starts:

================= worker 5 starts:

================= worker 6 starts:

================= worker 7 starts:

----------------- worker 2 intentional error:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1002 out of range; must be < 6


----------------- worker 5 intentional error:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1005 out of range; must be < 6


----------------- worker 3 intentional error:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1003 out of range; must be < 6


----------------- worker 4 intentional error:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1004 out of range; must be < 6


----------------- worker 1 intentional error:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1001 out of range; must be < 6


----------------- worker 0 intentional error:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1000 out of range; must be < 6


----------------- worker 6 intentional error:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1006 out of range; must be < 6


----------------- worker 7 intentional error:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1007 out of range; must be < 6


----------------- worker 4 is done:

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101004
    column 1: double 102004
    column 2: double 103004
    column 3: double 104004
    column 4: double 105004
    column 5: double 106004
row: 1 : 6 entries [6:11]
    column 0: double 201004
    column 1: double 202004
    column 2: double 203004
    column 3: double 204004
    column 4: double 205004
    column 5: double 206004
row: 2 : 6 entries [12:17]
    column 0: double 301004
    column 1: double 302004
    column 2: double 303004
    column 3: double 304004
    column 4: double 305004
    column 5: double 306004
row: 3 : 6 entries [18:23]
    column 0: double 401004
    column 1: double 402004
    column 2: double 403004
    column 3: double 404004
    column 4: double 405004
    column 5: double 406004
row: 4 : 6 entries [24:29]
    column 0: double 501004
    column 1: double 502004
    column 2: double 503004
    column 3: double 504004
    column 4: double 505004
    column 5: double 506004
row: 5 : 6 entries [30:35]
    ...

----------------- worker 2 is done:

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101002
    column 1: double 102002
    column 2: double 103002
    column 3: double 104002
    column 4: double 105002
    column 5: double 106002
row: 1 : 6 entries [6:11]
    column 0: double 201002
    column 1: double 202002
    column 2: double 203002
    column 3: double 204002
    column 4: double 205002
    column 5: double 206002
row: 2 : 6 entries [12:17]
    column 0: double 301002
    column 1: double 302002
    column 2: double 303002
    column 3: double 304002
    column 4: double 305002
    column 5: double 306002
row: 3 : 6 entries [18:23]
    column 0: double 401002
    column 1: double 402002
    column 2: double 403002
    column 3: double 404002
    column 4: double 405002
    column 5: double 406002
row: 4 : 6 entries [24:29]
    column 0: double 501002
    column 1: double 502002
    column 2: double 503002
    column 3: double 504002
    column 4: double 505002
    column 5: double 506002
row: 5 : 6 entries [30:35]
    ...

----------------- worker 0 is done:

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101000
    column 1: double 102000
    column 2: double 103000
    column 3: double 104000
    column 4: double 105000
    column 5: double 106000
row: 1 : 6 entries [6:11]
    column 0: double 201000
    column 1: double 202000
    column 2: double 203000
    column 3: double 204000
    column 4: double 205000
    column 5: double 206000
row: 2 : 6 entries [12:17]
    column 0: double 301000
    column 1: double 302000
    column 2: double 303000
    column 3: double 304000
    column 4: double 305000
    column 5: double 306000
row: 3 : 6 entries [18:23]
    column 0: double 401000
    column 1: double 402000
    column 2: double 403000
    column 3: double 404000
    column 4: double 405000
    column 5: double 406000
row: 4 : 6 entries [24:29]
    column 0: double 501000
    column 1: double 502000
    column 2: double 503000
    column 3: double 504000
    column 4: double 505000
    column 5: double 506000
row: 5 : 6 entries [30:35]
    ...

----------------- worker 3 is done:

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101003
    column 1: double 102003
    column 2: double 103003
    column 3: double 104003
    column 4: double 105003
    column 5: double 106003
row: 1 : 6 entries [6:11]
    column 0: double 201003
    column 1: double 202003
    column 2: double 203003
    column 3: double 204003
    column 4: double 205003
    column 5: double 206003
row: 2 : 6 entries [12:17]
    column 0: double 301003
    column 1: double 302003
    column 2: double 303003
    column 3: double 304003
    column 4: double 305003
    column 5: double 306003
row: 3 : 6 entries [18:23]
    column 0: double 401003
    column 1: double 402003
    column 2: double 403003
    column 3: double 404003
    column 4: double 405003
    column 5: double 406003
row: 4 : 6 entries [24:29]
    column 0: double 501003
    column 1: double 502003
    column 2: double 503003
    column 3: double 504003
    column 4: double 505003
    column 5: double 506003
row: 5 : 6 entries [30:35]
    ...

----------------- worker 3 error should be same:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1003 out of range; must be < 6


----------------- worker 7 is done:

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101007
    column 1: double 102007
    column 2: double 103007
    column 3: double 104007
    column 4: double 105007
    column 5: double 106007
row: 1 : 6 entries [6:11]
    column 0: double 201007
    column 1: double 202007
    column 2: double 203007
    column 3: double 204007
    column 4: double 205007
    column 5: double 206007
row: 2 : 6 entries [12:17]
    column 0: double 301007
    column 1: double 302007
    column 2: double 303007
    column 3: double 304007
    column 4: double 305007
    column 5: double 306007
row: 3 : 6 entries [18:23]
    column 0: double 401007
    column 1: double 402007
    column 2: double 403007
    column 3: double 404007
    column 4: double 405007
    column 5: double 406007
row: 4 : 6 entries [24:29]
    column 0: double 501007
    column 1: double 502007
    column 2: double 503007
    column 3: double 504007
    column 4: double 505007
    column 5: double 506007
row: 5 : 6 entries [30:35]
    ...

----------------- worker 1 is done:

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101001
    column 1: double 102001
    column 2: double 103001
    column 3: double 104001
    column 4: double 105001
    column 5: double 106001
row: 1 : 6 entries [6:11]
    column 0: double 201001
    column 1: double 202001
    column 2: double 203001
    column 3: double 204001
    column 4: double 205001
    column 5: double 206001
row: 2 : 6 entries [12:17]
    column 0: double 301001
    column 1: double 302001
    column 2: double 303001
    column 3: double 304001
    column 4: double 305001
    column 5: double 306001
row: 3 : 6 entries [18:23]
    column 0: double 401001
    column 1: double 402001
    column 2: double 403001
    column 3: double 404001
    column 4: double 405001
    column 5: double 406001
row: 4 : 6 entries [24:29]
    column 0: double 501001
    column 1: double 502001
    column 2: double 503001
    column 3: double 504001
    column 4: double 505001
    column 5: double 506001
row: 5 : 6 entries [30:35]
    ...

----------------- worker 1 error should be same:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1001 out of range; must be < 6


----------------- worker 5 is done:

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101005
    column 1: double 102005
    column 2: double 103005
    column 3: double 104005
    column 4: double 105005
    column 5: double 106005
row: 1 : 6 entries [6:11]
    column 0: double 201005
    column 1: double 202005
    column 2: double 203005
    column 3: double 204005
    column 4: double 205005
    column 5: double 206005
row: 2 : 6 entries [12:17]
    column 0: double 301005
    column 1: double 302005
    column 2: double 303005
    column 3: double 304005
    column 4: double 305005
    column 5: double 306005
row: 3 : 6 entries [18:23]
    column 0: double 401005
    column 1: double 402005
    column 2: double 403005
    column 3: double 404005
    column 4: double 405005
    column 5: double 406005
row: 4 : 6 entries [24:29]
    column 0: double 501005
    column 1: double 502005
    column 2: double 503005
    column 3: double 504005
    column 4: double 505005
    column 5: double 506005
row: 5 : 6 entries [30:35]
    ...

----------------- worker 5 error should be same:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1005 out of range; must be < 6


----------------- worker 2 error should be same:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1002 out of range; must be < 6


----------------- worker 0 error should be same:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1000 out of range; must be < 6


----------------- worker 6 is done:

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101006
    column 1: double 102006
    column 2: double 103006
    column 3: double 104006
    column 4: double 105006
    column 5: double 106006
row: 1 : 6 entries [6:11]
    column 0: double 201006
    column 1: double 202006
    column 2: double 203006
    column 3: double 204006
    column 4: double 205006
    column 5: double 206006
row: 2 : 6 entries [12:17]
    column 0: double 301006
    column 1: double 302006
    column 2: double 303006
    column 3: double 304006
    column 4: double 305006
    column 5: double 306006
row: 3 : 6 entries [18:23]
    column 0: double 401006
    column 1: double 402006
    column 2: double 403006
    column 3: double 404006
    column 4: double 405006
    column 5: double 406006
row: 4 : 6 entries [24:29]
    column 0: double 501006
    column 1: double 502006
    column 2: double 503006
    column 3: double 504006
    column 4: double 505006
    column 5: double 506006
row: 5 : 6 entries [30:35]
    ...

----------------- worker 6 error should be same:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1006 out of range; must be < 6


----------------- worker 7 error should be same:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1007 out of range; must be < 6


----------------- worker 4 error should be same:
GraphBLAS error: GrB_INVALID_INDEX
function: GrB_Matrix_setElement_INT32 (C, row, col, x)
Row index 1004 out of range; must be < 6


---- Master prints matrix 0

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101000
    column 1: double 102000
    column 2: double 103000
    column 3: double 104000
    column 4: double 105000
    column 5: double 106000
row: 1 : 6 entries [6:11]
    column 0: double 201000
    column 1: double 202000
    column 2: double 203000
    column 3: double 204000
    column 4: double 205000
    column 5: double 206000
row: 2 : 6 entries [12:17]
    column 0: double 301000
    column 1: double 302000
    column 2: double 303000
    column 3: double 304000
    column 4: double 305000
    column 5: double 306000
row: 3 : 6 entries [18:23]
    column 0: double 401000
    column 1: double 402000
    column 2: double 403000
    column 3: double 404000
    column 4: double 405000
    column 5: double 406000
row: 4 : 6 entries [24:29]
    column 0: double 501000
    column 1: double 502000
    column 2: double 503000
    column 3: double 504000
    column 4: double 505000
    column 5: double 506000
row: 5 : 6 entries [30:35]
    ...

---- Master prints matrix 1

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101001
    column 1: double 102001
    column 2: double 103001
    column 3: double 104001
    column 4: double 105001
    column 5: double 106001
row: 1 : 6 entries [6:11]
    column 0: double 201001
    column 1: double 202001
    column 2: double 203001
    column 3: double 204001
    column 4: double 205001
    column 5: double 206001
row: 2 : 6 entries [12:17]
    column 0: double 301001
    column 1: double 302001
    column 2: double 303001
    column 3: double 304001
    column 4: double 305001
    column 5: double 306001
row: 3 : 6 entries [18:23]
    column 0: double 401001
    column 1: double 402001
    column 2: double 403001
    column 3: double 404001
    column 4: double 405001
    column 5: double 406001
row: 4 : 6 entries [24:29]
    column 0: double 501001
    column 1: double 502001
    column 2: double 503001
    column 3: double 504001
    column 4: double 505001
    column 5: double 506001
row: 5 : 6 entries [30:35]
    ...

---- Master prints matrix 2

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101002
    column 1: double 102002
    column 2: double 103002
    column 3: double 104002
    column 4: double 105002
    column 5: double 106002
row: 1 : 6 entries [6:11]
    column 0: double 201002
    column 1: double 202002
    column 2: double 203002
    column 3: double 204002
    column 4: double 205002
    column 5: double 206002
row: 2 : 6 entries [12:17]
    column 0: double 301002
    column 1: double 302002
    column 2: double 303002
    column 3: double 304002
    column 4: double 305002
    column 5: double 306002
row: 3 : 6 entries [18:23]
    column 0: double 401002
    column 1: double 402002
    column 2: double 403002
    column 3: double 404002
    column 4: double 405002
    column 5: double 406002
row: 4 : 6 entries [24:29]
    column 0: double 501002
    column 1: double 502002
    column 2: double 503002
    column 3: double 504002
    column 4: double 505002
    column 5: double 506002
row: 5 : 6 entries [30:35]
    ...

---- Master prints matrix 3

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101003
    column 1: double 102003
    column 2: double 103003
    column 3: double 104003
    column 4: double 105003
    column 5: double 106003
row: 1 : 6 entries [6:11]
    column 0: double 201003
    column 1: double 202003
    column 2: double 203003
    column 3: double 204003
    column 4: double 205003
    column 5: double 206003
row: 2 : 6 entries [12:17]
    column 0: double 301003
    column 1: double 302003
    column 2: double 303003
    column 3: double 304003
    column 4: double 305003
    column 5: double 306003
row: 3 : 6 entries [18:23]
    column 0: double 401003
    column 1: double 402003
    column 2: double 403003
    column 3: double 404003
    column 4: double 405003
    column 5: double 406003
row: 4 : 6 entries [24:29]
    column 0: double 501003
    column 1: double 502003
    column 2: double 503003
    column 3: double 504003
    column 4: double 505003
    column 5: double 506003
row: 5 : 6 entries [30:35]
    ...

---- Master prints matrix 4

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101004
    column 1: double 102004
    column 2: double 103004
    column 3: double 104004
    column 4: double 105004
    column 5: double 106004
row: 1 : 6 entries [6:11]
    column 0: double 201004
    column 1: double 202004
    column 2: double 203004
    column 3: double 204004
    column 4: double 205004
    column 5: double 206004
row: 2 : 6 entries [12:17]
    column 0: double 301004
    column 1: double 302004
    column 2: double 303004
    column 3: double 304004
    column 4: double 305004
    column 5: double 306004
row: 3 : 6 entries [18:23]
    column 0: double 401004
    column 1: double 402004
    column 2: double 403004
    column 3: double 404004
    column 4: double 405004
    column 5: double 406004
row: 4 : 6 entries [24:29]
    column 0: double 501004
    column 1: double 502004
    column 2: double 503004
    column 3: double 504004
    column 4: double 505004
    column 5: double 506004
row: 5 : 6 entries [30:35]
    ...

---- Master prints matrix 5

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101005
    column 1: double 102005
    column 2: double 103005
    column 3: double 104005
    column 4: double 105005
    column 5: double 106005
row: 1 : 6 entries [6:11]
    column 0: double 201005
    column 1: double 202005
    column 2: double 203005
    column 3: double 204005
    column 4: double 205005
    column 5: double 206005
row: 2 : 6 entries [12:17]
    column 0: double 301005
    column 1: double 302005
    column 2: double 303005
    column 3: double 304005
    column 4: double 305005
    column 5: double 306005
row: 3 : 6 entries [18:23]
    column 0: double 401005
    column 1: double 402005
    column 2: double 403005
    column 3: double 404005
    column 4: double 405005
    column 5: double 406005
row: 4 : 6 entries [24:29]
    column 0: double 501005
    column 1: double 502005
    column 2: double 503005
    column 3: double 504005
    column 4: double 505005
    column 5: double 506005
row: 5 : 6 entries [30:35]
    ...

---- Master prints matrix 6

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101006
    column 1: double 102006
    column 2: double 103006
    column 3: double 104006
    column 4: double 105006
    column 5: double 106006
row: 1 : 6 entries [6:11]
    column 0: double 201006
    column 1: double 202006
    column 2: double 203006
    column 3: double 204006
    column 4: double 205006
    column 5: double 206006
row: 2 : 6 entries [12:17]
    column 0: double 301006
    column 1: double 302006
    column 2: double 303006
    column 3: double 304006
    column 4: double 305006
    column 5: double 306006
row: 3 : 6 entries [18:23]
    column 0: double 401006
    column 1: double 402006
    column 2: double 403006
    column 3: double 404006
    column 4: double 405006
    column 5: double 406006
row: 4 : 6 entries [24:29]
    column 0: double 501006
    column 1: double 502006
    column 2: double 503006
    column 3: double 504006
    column 4: double 505006
    column 5: double 506006
row: 5 : 6 entries [30:35]
    ...

---- Master prints matrix 7

GraphBLAS matrix: A 
nrows: 6 ncols: 6 max # entries: 36
format: standard CSR vlen: 6 nvec_nonempty: 6 nvec: 6 plen: 6 vdim: 6
hyper_ratio 0.0625
GraphBLAS type:  double size: 8
number of entries: 36 
row: 0 : 6 entries [0:5]
    column 0: double 101007
    column 1: double 102007
    column 2: double 103007
    column 3: double 104007
    column 4: double 105007
    column 5: double 106007
row: 1 : 6 entries [6:11]
    column 0: double 201007
    column 1: double 202007
    column 2: double 203007
    column 3: double 204007
    column 4: double 205007
    column 5: double 206007
row: 2 : 6 entries [12:17]
    column 0: double 301007
    column 1: double 302007
    column 2: double 303007
    column 3: double 304007
    column 4: double 305007
    column 5: double 306007
row: 3 : 6 entries [18:23]
    column 0: double 401007
    column 1: double 402007
    column 2: double 403007
    column 3: double 404007
    column 4: double 405007
    column 5: double 406007
row: 4 : 6 entries [24:29]
    column 0: double 501007
    column 1: double 502007
    column 2: double 503007
    column 3: double 504007
    column 4: double 505007
    column 5: double 506007
row: 5 : 6 entries [30:35]
    ...


---- Master thread prints an error message:
master -1 : Error: GraphBLAS error: GrB_NULL_POINTER
function: GrB_Matrix_new (&A, type, nrows, ncols)
Required argument is null: [A]