squiggle.c

commit 2096b363bd0acd05589dcb109616f7b8d6eeee19
parent fb6edbff0c674508c212e1ce127f5cf6ae451e3e
Author: NunoSempere <nuno.sempere@protonmail.com>
Date:   Fri, 11 Aug 2023 14:01:12 +0200

start adding model about probability of recovery after nuclear war.

Diffstat:
A
examples/10_nuclear_recovery/example.c
 | 
28
++++++++++++++++++++++++++++
A
examples/10_nuclear_recovery/makefile
 | 
53
+++++++++++++++++++++++++++++++++++++++++++++++++++++

2 files changed, 81 insertions(+), 0 deletions(-)
diff --git a/examples/10_nuclear_recovery/example.c b/examples/10_nuclear_recovery/example.c
@@ -0,0 +1,28 @@
+#include "../../squiggle.h"
+#include <math.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+double laplace(double successes, double trials){
+	return (successes + 1)/(trials + 2);
+}
+
+double yearly_probability_nuclear_apocalypse(double year, uint64_t* seed)
+{
+	double successes = 0;
+	double failures = (year - 1960);
+
+}
+
+
+int main()
+{
+    // set randomness seed
+    uint64_t* seed = malloc(sizeof(uint64_t));
+    *seed = 1000; // xorshift can't start with 0
+
+    int n = 1000 * 1000;
+
+    free(seed);
+}
diff --git a/examples/10_nuclear_recovery/makefile b/examples/10_nuclear_recovery/makefile
@@ -0,0 +1,53 @@
+# Interface: 
+#   make
+#   make build
+#   make format
+#   make run
+
+# Compiler
+CC=gcc
+# CC=tcc # <= faster compilation
+
+# Main file
+SRC=example.c ../../squiggle.c
+OUTPUT=example
+
+## Dependencies
+MATH=-lm
+
+## Flags
+DEBUG= #'-g'
+STANDARD=-std=c99
+WARNINGS=-Wall
+OPTIMIZED=-O3  #-Ofast
+# OPENMP=-fopenmp
+
+## Formatter
+STYLE_BLUEPRINT=webkit
+FORMATTER=clang-format -i -style=$(STYLE_BLUEPRINT)
+
+## make build
+build: $(SRC)
+	$(CC) $(OPTIMIZED) $(DEBUG) $(SRC) $(MATH) -o $(OUTPUT)
+
+format: $(SRC)
+	$(FORMATTER) $(SRC)
+
+run: $(SRC) $(OUTPUT)
+	OMP_NUM_THREADS=1 ./$(OUTPUT) && echo
+
+time-linux: 
+	@echo "Requires /bin/time, found on GNU/Linux systems" && echo
+	
+	@echo "Running 100x and taking avg time $(OUTPUT)"
+	@t=$$(/usr/bin/time -f "%e" -p bash -c 'for i in {1..100}; do $(OUTPUT); done' 2>&1 >/dev/null | grep real | awk '{print $$2}' ); echo "scale=2; 1000 * $$t / 100" | bc | sed "s|^|Time using 1 thread: |" | sed 's|$$|ms|' && echo
+
+## Profiling
+
+profile-linux: 
+	echo "Requires perf, which depends on the kernel version, and might be in linux-tools package or similar"
+	echo "Must be run as sudo"
+	$(CC) $(SRC) $(MATH) -o $(OUTPUT)
+	sudo perf record ./$(OUTPUT)
+	sudo perf report
+	rm perf.data