Question 29
UnclassifiedIn HPL benchmarking, what does the parameter 'N' represent?
Correct answer: B
Explanation
In HPL, "N" denotes the problem size, specifically the order of the dense matrix used in the benchmark. The matrix dimension determines how much work the solver performs, so "N" is the benchmark’s main size parameter.
Why each option is right or wrong
A. Number of GPUs
B. Problem size (matrix dimension)
In the HPL benchmark specification, the input parameter N is the order of the dense linear system, i.e., the matrix dimension of the test problem. It sets the total problem size for the LU factorization workload, so a larger N means a larger matrix and more floating-point work.
C. Number of iterations
D. Block size