commit 7f3e230d09d2a0121bef4b067ebdc5f0bb494703
parent 10ef6c622b262361c4dd98306a2dda55416534de
Author: Christos Margiolis <christos@margiolis.net>
Date: Fri, 22 Jan 2021 21:02:34 +0200
os1: ex3 done
Diffstat:
13 files changed, 209 insertions(+), 56 deletions(-)
diff --git a/c-parallel-computing/ex3/doc.pdf b/c-parallel-computing/ex3/doc.pdf
diff --git a/c-parallel-computing/ex3/doc.tex b/c-parallel-computing/ex3/doc.tex
@@ -0,0 +1,32 @@
+\documentclass{article}
+\usepackage[utf8]{inputenc}
+\usepackage[greek,english]{babel}
+\usepackage{alphabeta}
+\usepackage{fancyhdr}
+\usepackage{listings}
+\usepackage{mathtools}
+\usepackage{xcolor}
+\usepackage{biblatex}
+\usepackage[left=2cm,right=2cm]{geometry}
+
+\lstset {
+ basicstyle=\ttfamily,
+ columns=fullflexible,
+ breaklines=true,
+ keepspaces=true
+}
+
+\title{Εργαστήριο Παράλληλου Υπολογισμού - Εργασία 3}
+\author{Χρήστος Μαργιώλης}
+\date{Ιανουάριος 2020}
+
+\begin{document}
+
+\begin{titlepage}
+ \maketitle
+\end{titlepage}
+
+\renewcommand{\contentsname}{Περιεχόμενα}
+\tableofcontents
+
+\end{document}
diff --git a/c-parallel-computing/ex3/ex3.c b/c-parallel-computing/ex3/ex3.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <mpi.h>
+
+int
+main(int argc, char *argv[])
+{
+ int nproc, rank, root = 0;
+ int rc;
+
+ if ((rc = MPI_Init(&argc, &argv)) != 0) {
+ fprintf(stderr, "%s: cannot initiliaze MPI.\n", argv[0]);
+ MPI_Abort(MPI_COMM_WORLD, rc);
+ }
+ MPI_Comm_size(MPI_COMM_WORLD, &nproc);
+ MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+
+ MPI_Finalize();
+
+ return 0;
+}
diff --git a/sh-os1/ex3/avgs.awk b/sh-os1/ex3/avgs.awk
@@ -1,17 +0,0 @@
-#!/usr/bin/env -S awk -f
-
-BEGIN {
- if (ARGC < 2) {
- print "usage: avgs.awk grades"
- exit 1
- }
-}
-
-{
- sum = cnt = 0;
- for (i = 4; i <= NF; i++) {
- sum += $i;
- cnt++;
- }
- print "Student", NR",", $1, $2",", sum / cnt
-}
diff --git a/sh-os1/ex3/cmds b/sh-os1/ex3/cmds
@@ -1,36 +0,0 @@
-#!/bin/sh
-
-# TODO: make error checks: grades: 0 - 100
-
-echo "First names starting with K or N:"
-awk '$1 ~ /^K|N/ {print $2, $1}' grades
-echo ""
-
-echo "Last names starting with C or L:"
-awk '$2 ~ /^C|L/ {print $1, $2}' grades
-echo ""
-
-echo "Students with their second grade being > 85:"
-awk '{if ($5 > 85 && $5 > 85) print}' grades
-echo ""
-
-echo "Students in the humanities:"
-awk '{if ($3 == "Theo") print}' grades
-echo ""
-
-echo "Average grades:"
-awk '{
-sum = cnt = 0;
-for (i = 4; i <= NF; i++) {
- sum += $i;
- cnt++;
-}
-print $1, $2, sum / cnt}' grades
-echo ""
-
-echo "Students with their third grade being < 70:"
-awk 'BEGIN {cnt = 0} {if ($6 < 70) cnt++;} END {print cnt}' grades
-echo ""
-
-echo "How many student names end in 'is'?"
-awk 'BEGIN {cnt = 0} {if ($2 ~ /is$/) cnt++} END {print cnt}' grades
diff --git a/sh-os1/ex3/ex1_cmds b/sh-os1/ex3/ex1_cmds
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+test $# -ne 1 && echo "usage: ${0##*/} gradefile" 1>&2 && exit 1
+test ! -f "${1}" && echo "${0##*/}: ${1}: no such file" 1>&2 && exit 1
+
+file="${1}"
+
+echo "First names starting with K or N:"
+awk '$1 ~ /^K|N/ {print $2, $1}' ${file}
+echo ""
+
+echo "Last names starting with C or L:"
+awk '$2 ~ /^C|L/ {print $1, $2}' ${file}
+echo ""
+
+echo "Students with their second grade being > 85:"
+awk '{if ($5 > 85 && $5 > 85) print}' ${file}
+echo ""
+
+echo "Students in the humanities:"
+awk '{if ($3 == "Theo") print}' ${file}
+echo ""
+
+echo "Average ${file}:"
+awk '{
+sum = cnt = 0;
+for (i = 4; i <= NF; i++) {
+ sum += $i;
+ cnt++;
+}
+print $1, $2, sum / cnt}' ${file}
+echo ""
+
+echo "Students with their third grade being < 70:"
+awk 'BEGIN {cnt = 0} {if ($6 < 70) cnt++;} END {print cnt}' ${file}
+echo ""
+
+echo "How many student names end in 'is'?"
+awk 'BEGIN {cnt = 0} {if ($2 ~ /is$/) cnt++} END {print cnt}' ${file}
diff --git a/sh-os1/ex3/ex2_studavgs.awk b/sh-os1/ex3/ex2_studavgs.awk
@@ -0,0 +1,20 @@
+#!/usr/bin/env -S awk -f
+
+BEGIN {
+ # Quit if we don't have an input file.
+ if (ARGC < 2) {
+ print "usage: ex2_studavgs.awk gradefile";
+ exit 1;
+ }
+}
+
+{
+ sum = cnt = 0;
+ for (i = 4; i <= NF; i++) {
+ sum += $i;
+ cnt++;
+ }
+
+ # We're calling sort(1) from awk(1).
+ print "Student", NR",", $1, $2",", sum / cnt | "sort -Vrk5";
+}
diff --git a/sh-os1/ex3/ex3_courseavgs.awk b/sh-os1/ex3/ex3_courseavgs.awk
@@ -0,0 +1,25 @@
+#!/usr/bin/env -S awk -f
+
+BEGIN {
+ # Quit if we don't have an input file.
+ if (ARGC < 2) {
+ print "usage: ex3_courseavgs.awk gradefile";
+ exit 1;
+ }
+}
+
+{
+ # Loop from the 4th field onwards and
+ # add its value to the sum array.
+ for (i = 4; i <= NF; i++)
+ sum[i] += $i;
+}
+
+END {
+ # `NR` is the number of rows in the file, so
+ # we divide by that since each column is a
+ # course.
+ cnt = 1;
+ for (i = 4; i <= NF; i++)
+ print "Course", cnt++":", sum[i] / NR;
+}
diff --git a/sh-os1/ex3/ex4_rev.awk b/sh-os1/ex3/ex4_rev.awk
@@ -0,0 +1,20 @@
+#!/usr/bin/env -S awk -f
+
+BEGIN {
+ # Quit if we don't have an input file.
+ if (ARGC < 2) {
+ print "usage: ex4_rev.awk file";
+ exit 1;
+ }
+}
+
+{
+ # Add all lines to an array.
+ ln[NR] = $0;
+}
+
+END {
+ # Print them in reverse.
+ for (i = NR; i >= 1; i--)
+ print ln[i];
+}
diff --git a/sh-os1/ex3/ex5_filesize b/sh-os1/ex3/ex5_filesize
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+ls -l | grep '^-' | awk '{sum += $5} END{print sum}'
diff --git a/sh-os1/ex3/ex6_votes.awk b/sh-os1/ex3/ex6_votes.awk
@@ -0,0 +1,29 @@
+#!/usr/bin/env -S awk -f
+
+BEGIN {
+ # Quit if we don't have an input file.
+ if (ARGC != 2) {
+ print "usage: ex6_votes.awk votefile";
+ exit 1;
+ }
+
+ max = 0;
+}
+
+{
+ cnt = 0;
+ # We're testing only against 'y's,
+ # no need to check for 'n's.
+ for (i = 2; i <= NF; i++)
+ if ($i == "y")
+ cnt++;
+ if (cnt > max) {
+ max = cnt;
+ winner = $1;
+ }
+}
+
+END {
+ print "Winner:", winner;
+ print "Votes:", max;
+}
diff --git a/sh-os1/ex3/ex7_countmatch b/sh-os1/ex3/ex7_countmatch
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+main() {
+ xread "String: " str
+ test -z "${str}" && echo "${0##*/}: give a non-empty string" 1>&2 && exit 1
+
+ xread "File: " file
+ test ! -f "${file}" && echo "${0##*/}: ${file}: no such file" 1>&2 && exit 1
+
+ awk "/${str}/ {cnt++} END {print cnt}" ${file}
+}
+
+# A portable `read` function with behavior similar to
+# `read -erp`.
+xread() {
+ printf "%s" "${1}" && read -r ${2}
+}
+
+# Pass all command line arguments to `main`.
+main "$@"
diff --git a/sh-os1/ex3/grades b/sh-os1/ex3/grades
@@ -1,3 +0,0 @@
-Thomas Georgiou Texn 96 89 81 84
-Mary Makridi Thet 67 75 56 74
-Nick Aliferis Theo 81 87 75 94
