more work on squiggle_c

This commit is contained in:
NunoSempere 2023-06-26 18:44:04 +01:00
parent 39652b3bfe
commit 3b29ad7e45
7 changed files with 104 additions and 4 deletions

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#include "../../squiggle.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
// Estimate functions
float sample_0(uint32_t* seed)
{
return 0;
}
float sample_1(uint32_t* seed)
{
return 1;
}
float sample_few(uint32_t* seed)
{
return random_to(1, 3, seed);
}
float sample_many(uint32_t* seed)
{
return random_to(2, 10, seed);
}
int main(){
// set randomness seed
uint32_t* seed = malloc(sizeof(uint32_t));
*seed = 1000; // xorshift can't start with 0
float p_a = 0.8;
float p_b = 0.5;
float p_c = p_a * p_b;
int n_dists = 4;
float weights[] = { 1 - p_c, p_c / 2, p_c / 4, p_c / 4 };
float (*samplers[])(uint32_t*) = { sample_0, sample_1, sample_few, sample_many };
float result_one = mixture(samplers, weights, n_dists, seed);
printf("result_one: %f\n", result_one);
}
/*
Aggregation mechanisms:
- Quantiles (requires a sort)
- Sum
- Average
- Std
*/

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#include "../squiggle.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include "../../squiggle.h"
// Estimate functions
float sample_0(uint32_t* seed)
@ -37,9 +37,6 @@ int main(){
float weights[] = { 1 - p_c, p_c / 2, p_c / 4, p_c / 4 };
float (*samplers[])(uint32_t*) = { sample_0, sample_1, sample_few, sample_many };
float result_one = mixture(samplers, weights, n_dists, seed);
printf("result_one: %f\n", result_one);
int n_samples = 1000000;
float* result_many = (float *) malloc(n_samples * sizeof(float));
for(int i=0; i<n_samples; i++){

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# Interface:
# make
# make build
# make format
# make run
# Compiler
CC=gcc
# CC=tcc # <= faster compilation
# Main file
SRC=example.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