argv <- commandArgs(trailingOnly = TRUE)
-nfrom = 128
-nto = 2048
-nstep = 128
-loops = 1
-
-if ( length(argv) > 0 ) {
-
- for ( z in 1:length(argv) ) {
-
- if ( z == 1 ) {
- nfrom <- as.numeric(argv[z])
- } else if ( z==2 ) {
- nto <- as.numeric(argv[z])
- } else if ( z==3 ) {
- nstep <- as.numeric(argv[z])
- } else if ( z==4 ) {
- loops <- as.numeric(argv[z])
- }
- }
+nfrom <- 128
+nto <- 2048
+nstep <- 128
+loops <- 1
+
+if (length(argv) > 0) {
+ for (z in 1:length(argv)) {
+ if (z == 1) {
+ nfrom <- as.numeric(argv[z])
+ } else if (z == 2) {
+ nto <- as.numeric(argv[z])
+ } else if (z == 3) {
+ nstep <- as.numeric(argv[z])
+ } else if (z == 4) {
+ loops <- as.numeric(argv[z])
+ }
+ }
}
-p=Sys.getenv("OPENBLAS_LOOPS")
-if ( p != "" ) {
- loops <- as.numeric(p)
-}
+p <- Sys.getenv("OPENBLAS_LOOPS")
+if (p != "") {
+ loops <- as.numeric(p)
+}
-cat(sprintf("From %.0f To %.0f Step=%.0f Loops=%.0f\n",nfrom, nto, nstep, loops))
+cat(sprintf(
+ "From %.0f To %.0f Step=%.0f Loops=%.0f\n",
+ nfrom,
+ nto,
+ nstep,
+ loops
+))
cat(sprintf(" SIZE Flops Time\n"))
-n = nfrom
-while ( n <= nto ) {
-
- A <- matrix(runif(n*n), ncol = n, nrow = n, byrow = TRUE)
-
- l = 1
-
- start <- proc.time()[3]
-
- while ( l <= loops ) {
+n <- nfrom
+while (n <= nto) {
+ A <- matrix(rnorm(n * n), ncol = n, nrow = n)
+ ev <- 0
+ z <- system.time(for (l in 1:loops) {
+ ev <- eigen(A)
+ })
- ev <- eigen(A)
- l = l + 1
- }
+ mflops <- (26.66 * n * n * n) * loops / (z[3] * 1.0e6)
- end <- proc.time()[3]
- timeg = end - start
- mflops = (26.66 *n*n*n ) * loops / ( timeg * 1.0e6 )
+ st <- sprintf("%.0fx%.0f :", n, n)
+ cat(sprintf("%20s %10.2f MFlops %10.6f sec\n", st, mflops, z[3]))
- st = sprintf("%.0fx%.0f :",n , n)
- cat(sprintf("%20s %10.2f MFlops %10.6f sec\n", st, mflops, timeg))
-
- n = n + nstep
+ n <- n + nstep
}
-
-
argv <- commandArgs(trailingOnly = TRUE)
-nfrom = 128
-nto = 2048
-nstep = 128
-loops = 1
-
-if ( length(argv) > 0 ) {
-
- for ( z in 1:length(argv) ) {
-
- if ( z == 1 ) {
- nfrom <- as.numeric(argv[z])
- } else if ( z==2 ) {
- nto <- as.numeric(argv[z])
- } else if ( z==3 ) {
- nstep <- as.numeric(argv[z])
- } else if ( z==4 ) {
- loops <- as.numeric(argv[z])
- }
- }
+nfrom <- 128
+nto <- 2048
+nstep <- 128
+loops <- 1
+
+if (length(argv) > 0) {
+ for (z in 1:length(argv)) {
+ if (z == 1) {
+ nfrom <- as.numeric(argv[z])
+ } else if (z == 2) {
+ nto <- as.numeric(argv[z])
+ } else if (z == 3) {
+ nstep <- as.numeric(argv[z])
+ } else if (z == 4) {
+ loops <- as.numeric(argv[z])
+ }
+ }
}
-p=Sys.getenv("OPENBLAS_LOOPS")
-if ( p != "" ) {
- loops <- as.numeric(p)
-}
+p <- Sys.getenv("OPENBLAS_LOOPS")
+if (p != "") {
+ loops <- as.numeric(p)
+}
-cat(sprintf("From %.0f To %.0f Step=%.0f Loops=%.0f\n",nfrom, nto, nstep, loops))
+cat(sprintf(
+ "From %.0f To %.0f Step=%.0f Loops=%.0f\n",
+ nfrom,
+ nto,
+ nstep,
+ loops
+))
cat(sprintf(" SIZE Flops Time\n"))
-n = nfrom
-while ( n <= nto ) {
-
- A <- matrix(runif(n*n), ncol = n, nrow = n, byrow = TRUE)
- B <- matrix(runif(n*n), ncol = n, nrow = n, byrow = TRUE)
-
- l = 1
-
- start <- proc.time()[3]
+n <- nfrom
+while (n <= nto) {
+ A <- matrix(runif(n * n),
+ ncol = n,
+ nrow = n,
+ byrow = TRUE)
+ B <- matrix(runif(n * n),
+ ncol = n,
+ nrow = n,
+ byrow = TRUE)
+ C <- 1
- while ( l <= loops ) {
+ z <- system.time(for (l in 1:loops) {
+ C <- A %*% B
+ l <- l + 1
+ })
- C <- A %*% B
- l = l + 1
- }
+ mflops <- (2.0 * n * n * n) * loops / (z[3] * 1.0e6)
- end <- proc.time()[3]
- timeg = end - start
- mflops = ( 2.0 *n*n*n ) * loops / ( timeg * 1.0e6 )
+ st <- sprintf("%.0fx%.0f :", n, n)
+ cat(sprintf("%20s %10.2f MFlops %10.6f sec\n", st, mflops, z[3]))
- st = sprintf("%.0fx%.0f :",n , n)
- cat(sprintf("%20s %10.2f MFlops %10.6f sec\n", st, mflops, timeg))
-
- n = n + nstep
+ n <- n + nstep
}
-
-
argv <- commandArgs(trailingOnly = TRUE)
-nfrom = 128
-nto = 2048
-nstep = 128
-loops = 1
-
-if ( length(argv) > 0 ) {
-
- for ( z in 1:length(argv) ) {
-
- if ( z == 1 ) {
- nfrom <- as.numeric(argv[z])
- } else if ( z==2 ) {
- nto <- as.numeric(argv[z])
- } else if ( z==3 ) {
- nstep <- as.numeric(argv[z])
- } else if ( z==4 ) {
- loops <- as.numeric(argv[z])
- }
- }
+nfrom <- 128
+nto <- 2048
+nstep <- 128
+loops <- 1
+
+if (length(argv) > 0) {
+ for (z in 1:length(argv)) {
+ if (z == 1) {
+ nfrom <- as.numeric(argv[z])
+ } else if (z == 2) {
+ nto <- as.numeric(argv[z])
+ } else if (z == 3) {
+ nstep <- as.numeric(argv[z])
+ } else if (z == 4) {
+ loops <- as.numeric(argv[z])
+ }
+ }
}
-p=Sys.getenv("OPENBLAS_LOOPS")
-if ( p != "" ) {
- loops <- as.numeric(p)
-}
+p <- Sys.getenv("OPENBLAS_LOOPS")
+if (p != "") {
+ loops <- as.numeric(p)
+}
-cat(sprintf("From %.0f To %.0f Step=%.0f Loops=%.0f\n",nfrom, nto, nstep, loops))
+cat(sprintf(
+ "From %.0f To %.0f Step=%.0f Loops=%.0f\n",
+ nfrom,
+ nto,
+ nstep,
+ loops
+))
cat(sprintf(" SIZE Flops Time\n"))
-n = nfrom
-while ( n <= nto ) {
-
- A <- matrix(runif(n*n), ncol = n, nrow = n, byrow = TRUE)
- B <- matrix(runif(n*n), ncol = n, nrow = n, byrow = TRUE)
-
- l = 1
-
- start <- proc.time()[3]
+n <- nfrom
+while (n <= nto) {
+ A <- matrix(rnorm(n * n), ncol = n, nrow = n)
+ B <- matrix(rnorm(n * n), ncol = n, nrow = n)
- while ( l <= loops ) {
+ z <- system.time(for (l in 1:loops) {
+ solve(A, B)
+ })
- solve(A,B)
- l = l + 1
- }
+ mflops <-
+ (2.0 / 3.0 * n * n * n + 2.0 * n * n * n) * loops / (z[3] * 1.0e6)
- end <- proc.time()[3]
- timeg = end - start
- mflops = (2.0/3.0 *n*n*n + 2.0 *n*n*n ) * loops / ( timeg * 1.0e6 )
+ st <- sprintf("%.0fx%.0f :", n, n)
+ cat(sprintf("%20s %10.2f MFlops %10.6f sec\n", st, mflops, z[3]))
- st = sprintf("%.0fx%.0f :",n , n)
- cat(sprintf("%20s %10.2f MFlops %10.6f sec\n", st, mflops, timeg))
-
- n = n + nstep
+ n <- n + nstep
}
-
-