disable NaN checks before BLAS calls dsolve.R
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def0385caa
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b70fd23836
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@ -2,6 +2,10 @@
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argv <- commandArgs(trailingOnly = TRUE)
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if (!is.null(options("matprod")[[1]])) {
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options(matprod = "blas")
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}
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nfrom <- 128
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nto <- 2048
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nstep <- 128
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@ -19,7 +23,6 @@ if (length(argv) > 0) {
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loops <- as.numeric(argv[z])
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}
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}
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}
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p <- Sys.getenv("OPENBLAS_LOOPS")
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@ -27,31 +30,23 @@ if (p != "") {
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loops <- as.numeric(p)
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}
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cat(sprintf(
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"From %.0f To %.0f Step=%.0f Loops=%.0f\n",
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nfrom,
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nto,
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nstep,
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loops
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))
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cat(sprintf("From %.0f To %.0f Step=%.0f Loops=%.0f\n", nfrom, nto, nstep, loops))
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cat(sprintf(" SIZE Flops Time\n"))
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n <- nfrom
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while (n <= nto) {
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A <- matrix(rnorm(n * n), ncol = n, nrow = n)
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B <- matrix(rnorm(n * n), ncol = n, nrow = n)
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A <- matrix(rnorm(n * n), nrow = n)
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B <- matrix(rnorm(n * n), nrow = n)
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z <- system.time(for (l in 1:loops) {
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solve(A, B)
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})
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mflops <-
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(2.0 / 3.0 * n * n * n + 2.0 * n * n * n) * loops / (z[3] * 1.0e6)
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mflops <- (2.0/3 * n * n * n + 2 * n * n * n) * loops/ (z[3] * 1e6)
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st <- sprintf("%.0fx%.0f :", n, n)
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cat(sprintf("%20s %10.2f MFlops %10.6f sec\n", st, mflops, z[3]))
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n <- n + nstep
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}
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