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26 lines
941 B
Plaintext
26 lines
941 B
Plaintext
GPU Device 0: "Hopper" with compute capability 9.0
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Using default input file [../../../../Samples/4_CUDA_Libraries/cuSolverSp_LowlevelQR/lap2D_5pt_n32.mtx]
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step 1: read matrix market format
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sparse matrix A is 1024 x 1024 with 3008 nonzeros, base=1
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step 2: create opaque info structure
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step 3: analyze qr(A) to know structure of L
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step 4: workspace for qr(A)
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step 5: compute A = L*L^T
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step 6: check if the matrix is singular
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step 7: solve A*x = b
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step 8: evaluate residual r = b - A*x (result on CPU)
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(CPU) |b - A*x| = 5.329071E-15
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(CPU) |A| = 6.000000E+00
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(CPU) |x| = 5.000000E-01
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(CPU) |b - A*x|/(|A|*|x|) = 1.776357E-15
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step 9: create opaque info structure
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step 10: analyze qr(A) to know structure of L
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step 11: workspace for qr(A)
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GPU buffer size = 3751424 bytes
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step 12: compute A = L*L^T
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step 13: check if the matrix is singular
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step 14: solve A*x = b
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(GPU) |b - A*x| = 4.218847E-15
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(GPU) |b - A*x|/(|A|*|x|) = 1.406282E-15
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