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693fac451f
Author | SHA1 | Date | |
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693fac451f | |||
2819815aa8 | |||
7efa6b6071 | |||
d84b92cec2 | |||
272d17473d | |||
159a711b34 |
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@ -280,7 +280,13 @@ Overall, I would caution that if you really care about the very far tails of dis
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In fact, squiggle.c does have a few functions for algebraic manipulations of simple distributions at the end of squiggle.c. But these are pretty rudimentary, and I don't know whether I'll end up expanding or deleting them.
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In fact, squiggle.c does have a few functions for algebraic manipulations of simple distributions at the end of squiggle.c. But these are pretty rudimentary, and I don't know whether I'll end up expanding or deleting them.
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### Results of running clang-tidy
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### Compiler warnings
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||||||
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||||||
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#### Harsh compilation
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||||||
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||||||
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By default, I've enabled -Warn-all, -Warn-extra. However, these produce warnings for unused variables, some of which can sometimes be inocuous. For now, I'm suppressing these using a clever UNUSED macro. If you don't like that approach, you could add -Wno-unused-parameter to your makefile and remove the macro.
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||||||
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#### Results of running clang-tidy
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||||||
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||||||
clang-tidy is a utility to detect common errors in C/C++. You can run it with:
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clang-tidy is a utility to detect common errors in C/C++. You can run it with:
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@ -5,11 +5,13 @@
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// Estimate functions
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// Estimate functions
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double sample_0(uint64_t* seed)
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double sample_0(uint64_t* seed)
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{
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{
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||||||
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UNUSED(seed);
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return 0;
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return 0;
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}
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}
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double sample_1(uint64_t* seed)
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double sample_1(uint64_t* seed)
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{
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{
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UNUSED(seed);
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return 1;
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return 1;
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}
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}
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@ -12,8 +12,8 @@ int main()
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double p_b = 0.5;
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double p_b = 0.5;
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double p_c = p_a * p_b;
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double p_c = p_a * p_b;
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double sample_0(uint64_t * seed) { return 0; }
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double sample_0(uint64_t * seed) { UNUSED(seed); return 0; }
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double sample_1(uint64_t * seed) { return 1; }
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double sample_1(uint64_t * seed) { UNUSED(seed); return 1; }
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double sample_few(uint64_t * seed) { return sample_to(1, 3, seed); }
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double sample_few(uint64_t * seed) { return sample_to(1, 3, seed); }
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double sample_many(uint64_t * seed) { return sample_to(2, 10, seed); }
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double sample_many(uint64_t * seed) { return sample_to(2, 10, seed); }
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@ -15,8 +15,8 @@ int main()
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int n_dists = 4;
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int n_dists = 4;
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// These are nested functions. They will not compile without gcc.
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// These are nested functions. They will not compile without gcc.
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double sample_0(uint64_t * seed) { return 0; }
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double sample_0(uint64_t * seed) { UNUSED(seed); return 0; }
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double sample_1(uint64_t * seed) { return 1; }
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double sample_1(uint64_t * seed) { UNUSED(seed); return 1; }
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double sample_few(uint64_t * seed) { return sample_to(1, 3, seed); }
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double sample_few(uint64_t * seed) { return sample_to(1, 3, seed); }
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double sample_many(uint64_t * seed) { return sample_to(2, 10, seed); }
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double sample_many(uint64_t * seed) { return sample_to(2, 10, seed); }
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@ -23,8 +23,8 @@ DEPS=$(SQUIGGLE) $(MATH)
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## Flags
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## Flags
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DEBUG= #'-g'
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DEBUG= #'-g'
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WARN=-Wall -Wextra
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STANDARD=-std=c99
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STANDARD=-std=c99
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WARNINGS=-Wall
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OPTIMIZED=-O3 #-Ofast
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OPTIMIZED=-O3 #-Ofast
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## Formatter
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## Formatter
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@ -33,12 +33,12 @@ FORMATTER=clang-format -i -style=$(STYLE_BLUEPRINT)
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## make all
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## make all
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all:
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all:
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$(CC) $(OPTIMIZED) $(DEBUG) 00_example_template/$(SRC) $(DEPS) -o 00_example_template/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 00_example_template/$(SRC) $(DEPS) -o 00_example_template/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) 01_one_sample/$(SRC) $(DEPS) -o 01_one_sample/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 01_one_sample/$(SRC) $(DEPS) -o 01_one_sample/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) 02_time_to_botec/$(SRC) $(DEPS) -o 02_time_to_botec/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 02_time_to_botec/$(SRC) $(DEPS) -o 02_time_to_botec/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) 03_gcc_nested_function/$(SRC) $(DEPS) -o 03_gcc_nested_function/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 03_gcc_nested_function/$(SRC) $(DEPS) -o 03_gcc_nested_function/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) 04_gamma_beta/$(SRC) $(DEPS) -o 04_gamma_beta/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 04_gamma_beta/$(SRC) $(DEPS) -o 04_gamma_beta/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) 05_hundred_lognormals/$(SRC) $(DEPS) -o 05_hundred_lognormals/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 05_hundred_lognormals/$(SRC) $(DEPS) -o 05_hundred_lognormals/$(OUTPUT)
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format-all:
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format-all:
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$(FORMATTER) 00_example_template/$(SRC)
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$(FORMATTER) 00_example_template/$(SRC)
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@ -58,7 +58,7 @@ run-all:
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## make one DIR=01_one_sample
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## make one DIR=01_one_sample
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one: $(DIR)/$(SRC)
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one: $(DIR)/$(SRC)
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$(CC) $(OPTIMIZED) $(DEBUG) $(DIR)/$(SRC) $(DEPS) -o $(DIR)/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) $(DIR)/$(SRC) $(DEPS) -o $(DIR)/$(OUTPUT)
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## make format-one DIR=01_one_sample
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## make format-one DIR=01_one_sample
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format-one: $(DIR)/$(SRC)
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format-one: $(DIR)/$(SRC)
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@ -78,7 +78,7 @@ time-linux-one: $(DIR)/$(OUTPUT)
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profile-linux-one:
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profile-linux-one:
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echo "Requires perf, which depends on the kernel version, and might be in linux-tools package or similar"
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echo "Requires perf, which depends on the kernel version, and might be in linux-tools package or similar"
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echo "Must be run as sudo"
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echo "Must be run as sudo"
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||||||
$(CC) $(OPTIMIZED) $(DEBUG) $(DIR)/$(SRC) $(DEPS) -o $(DIR)/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) $(DIR)/$(SRC) $(DEPS) -o $(DIR)/$(OUTPUT)
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# $(CC) $(SRC) $(DEPS) -o $(OUTPUT)
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# $(CC) $(SRC) $(DEPS) -o $(OUTPUT)
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sudo perf record $(DIR)/$(OUTPUT)
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sudo perf record $(DIR)/$(OUTPUT)
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sudo perf report
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sudo perf report
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@ -5,11 +5,13 @@
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||||||
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double sample_0(uint64_t* seed)
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double sample_0(uint64_t* seed)
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||||||
{
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{
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||||||
|
UNUSED(seed);
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||||||
return 0;
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return 0;
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}
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}
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||||||
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||||||
double sample_1(uint64_t* seed)
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double sample_1(uint64_t* seed)
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||||||
{
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{
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||||||
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UNUSED(seed);
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||||||
return 1;
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return 1;
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}
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}
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||||||
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||||||
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@ -9,8 +9,8 @@ int main()
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double p_b = 0.5;
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double p_b = 0.5;
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double p_c = p_a * p_b;
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double p_c = p_a * p_b;
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||||||
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double sample_0(uint64_t * seed) { return 0; }
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double sample_0(uint64_t * seed) { UNUSED(seed); return 0; }
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double sample_1(uint64_t * seed) { return 1; }
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double sample_1(uint64_t * seed) { UNUSED(seed); return 1; }
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double sample_few(uint64_t * seed) { return sample_to(1, 3, seed); }
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double sample_few(uint64_t * seed) { return sample_to(1, 3, seed); }
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||||||
double sample_many(uint64_t * seed) { return sample_to(2, 10, seed); }
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double sample_many(uint64_t * seed) { return sample_to(2, 10, seed); }
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@ -25,6 +25,7 @@ DEPS=$(SQUIGGLE) $(SQUIGGLE_MORE) $(MATH) $(OPENMP)
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||||||
## Flags
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## Flags
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||||||
DEBUG= #'-g'
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DEBUG= #'-g'
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||||||
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WARN=-Wall -Wextra
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||||||
STANDARD=-std=c99
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STANDARD=-std=c99
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||||||
WARNINGS=-Wall
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WARNINGS=-Wall
|
||||||
OPTIMIZED=-O3 #-Ofast
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OPTIMIZED=-O3 #-Ofast
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||||||
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@ -35,21 +36,21 @@ FORMATTER=clang-format -i -style=$(STYLE_BLUEPRINT)
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||||||
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||||||
## make all
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## make all
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||||||
all:
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all:
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||||||
$(CC) $(OPTIMIZED) $(DEBUG) 00_example_template/$(SRC) $(DEPS) -o 00_example_template/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 00_example_template/$(SRC) $(DEPS) -o 00_example_template/$(OUTPUT)
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||||||
$(CC) $(OPTIMIZED) $(DEBUG) 01_sample_from_cdf/$(SRC) $(DEPS) -o 01_sample_from_cdf/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 01_sample_from_cdf/$(SRC) $(DEPS) -o 01_sample_from_cdf/$(OUTPUT)
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||||||
$(CC) $(OPTIMIZED) $(DEBUG) 02_sample_from_cdf_beta/$(SRC) $(DEPS) -o 02_sample_from_cdf_beta/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 02_sample_from_cdf_beta/$(SRC) $(DEPS) -o 02_sample_from_cdf_beta/$(OUTPUT)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) 03_ci_beta/$(SRC) $(DEPS) -o 03_ci_beta/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 03_ci_beta/$(SRC) $(DEPS) -o 03_ci_beta/$(OUTPUT)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) 04_nuclear_war/$(SRC) $(DEPS) -o 04_nuclear_war/$(OUTPUT)
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$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 04_nuclear_war/$(SRC) $(DEPS) -o 04_nuclear_war/$(OUTPUT)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) 05_burn_10kg_fat/$(SRC) $(DEPS) -o 05_burn_10kg_fat/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 05_burn_10kg_fat/$(SRC) $(DEPS) -o 05_burn_10kg_fat/$(OUTPUT)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) 06_nuclear_recovery/$(SRC) $(DEPS) -o 06_nuclear_recovery/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 06_nuclear_recovery/$(SRC) $(DEPS) -o 06_nuclear_recovery/$(OUTPUT)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) 07_algebra/$(SRC) $(DEPS) -o 07_algebra/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 07_algebra/$(SRC) $(DEPS) -o 07_algebra/$(OUTPUT)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) 08_algebra_and_conversion/$(SRC) $(DEPS) -o 08_algebra_and_conversion/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 08_algebra_and_conversion/$(SRC) $(DEPS) -o 08_algebra_and_conversion/$(OUTPUT)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) 09_ergonomic_algebra/$(SRC) $(DEPS) -o 09_ergonomic_algebra/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 09_ergonomic_algebra/$(SRC) $(DEPS) -o 09_ergonomic_algebra/$(OUTPUT)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) 10_twitter_thread_example/$(SRC) $(DEPS) -o 10_twitter_thread_example/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 10_twitter_thread_example/$(SRC) $(DEPS) -o 10_twitter_thread_example/$(OUTPUT)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) 11_billion_lognormals_paralell/$(SRC) $(DEPS) -o 11_billion_lognormals_paralell/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 11_billion_lognormals_paralell/$(SRC) $(DEPS) -o 11_billion_lognormals_paralell/$(OUTPUT)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) 12_time_to_botec_parallel/$(SRC) $(DEPS) -o 12_time_to_botec_parallel/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 12_time_to_botec_parallel/$(SRC) $(DEPS) -o 12_time_to_botec_parallel/$(OUTPUT)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) 13_parallelize_min/$(SRC) $(DEPS) -o 13_parallelize_min/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 13_parallelize_min/$(SRC) $(DEPS) -o 13_parallelize_min/$(OUTPUT)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) 14_check_confidence_interval/$(SRC) $(DEPS) -o 14_check_confidence_interval/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) 14_check_confidence_interval/$(SRC) $(DEPS) -o 14_check_confidence_interval/$(OUTPUT)
|
||||||
|
|
||||||
format-all:
|
format-all:
|
||||||
$(FORMATTER) 00_example_template/$(SRC)
|
$(FORMATTER) 00_example_template/$(SRC)
|
||||||
|
@ -87,7 +88,7 @@ run-all:
|
||||||
|
|
||||||
## make one DIR=06_nuclear_recovery
|
## make one DIR=06_nuclear_recovery
|
||||||
one: $(DIR)/$(SRC)
|
one: $(DIR)/$(SRC)
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) $(DIR)/$(SRC) $(DEPS) -o $(DIR)/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) $(DIR)/$(SRC) $(DEPS) -o $(DIR)/$(OUTPUT)
|
||||||
|
|
||||||
## make format-one DIR=06_nuclear_recovery
|
## make format-one DIR=06_nuclear_recovery
|
||||||
format-one: $(DIR)/$(SRC)
|
format-one: $(DIR)/$(SRC)
|
||||||
|
@ -107,7 +108,7 @@ time-linux-one: $(DIR)/$(OUTPUT)
|
||||||
profile-linux-one:
|
profile-linux-one:
|
||||||
echo "Requires perf, which depends on the kernel version, and might be in linux-tools package or similar"
|
echo "Requires perf, which depends on the kernel version, and might be in linux-tools package or similar"
|
||||||
echo "Must be run as sudo"
|
echo "Must be run as sudo"
|
||||||
$(CC) $(OPTIMIZED) $(DEBUG) $(DIR)/$(SRC) $(DEPS) -o $(DIR)/$(OUTPUT)
|
$(CC) $(OPTIMIZED) $(DEBUG) $(WARN) $(DIR)/$(SRC) $(DEPS) -o $(DIR)/$(OUTPUT)
|
||||||
# $(CC) $(SRC) $(DEPS) -o $(OUTPUT)
|
# $(CC) $(SRC) $(DEPS) -o $(OUTPUT)
|
||||||
sudo perf record $(DIR)/$(OUTPUT)
|
sudo perf record $(DIR)/$(OUTPUT)
|
||||||
sudo perf report
|
sudo perf report
|
||||||
|
|
29
squiggle.c
29
squiggle.c
|
@ -3,12 +3,14 @@
|
||||||
#include <stdint.h>
|
#include <stdint.h>
|
||||||
#include <stdlib.h>
|
#include <stdlib.h>
|
||||||
|
|
||||||
// math constants
|
// Defs
|
||||||
#define PI 3.14159265358979323846 // M_PI in gcc gnu99
|
#define PI 3.14159265358979323846 // M_PI in gcc gnu99
|
||||||
#define NORMAL90CONFIDENCE 1.6448536269514727
|
#define NORMAL90CONFIDENCE 1.6448536269514727
|
||||||
|
#define UNUSED(x) (void)(x)
|
||||||
|
// ^ https://stackoverflow.com/questions/3599160/how-can-i-suppress-unused-parameter-warnings-in-c
|
||||||
|
|
||||||
// Pseudo Random number generator
|
// Pseudo Random number generators
|
||||||
static uint64_t xorshift32(uint32_t* seed)
|
static uint64_t xorshift64(uint64_t* seed)
|
||||||
{
|
{
|
||||||
// Algorithm "xor" from p. 4 of Marsaglia, "Xorshift RNGs"
|
// Algorithm "xor" from p. 4 of Marsaglia, "Xorshift RNGs"
|
||||||
// See:
|
// See:
|
||||||
|
@ -19,19 +21,20 @@ static uint64_t xorshift32(uint32_t* seed)
|
||||||
// <https://prng.di.unimi.it/>
|
// <https://prng.di.unimi.it/>
|
||||||
uint64_t x = *seed;
|
uint64_t x = *seed;
|
||||||
x ^= x << 13;
|
x ^= x << 13;
|
||||||
x ^= x >> 17;
|
|
||||||
x ^= x << 5;
|
|
||||||
return *seed = x;
|
|
||||||
}
|
|
||||||
|
|
||||||
static uint64_t xorshift64(uint64_t* seed)
|
|
||||||
{
|
|
||||||
// same as above, but for generating doubles instead of floats
|
|
||||||
uint64_t x = *seed;
|
|
||||||
x ^= x << 13;
|
|
||||||
x ^= x >> 7;
|
x ^= x >> 7;
|
||||||
x ^= x << 17;
|
x ^= x << 17;
|
||||||
return *seed = x;
|
return *seed = x;
|
||||||
|
|
||||||
|
/*
|
||||||
|
// if one wanted to generate 32 bit ints,
|
||||||
|
// from which to generate floats,
|
||||||
|
// one could do the following:
|
||||||
|
uint32_t x = *seed;
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||||||
|
x ^= x << 13;
|
||||||
|
x ^= x >> 17;
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||||||
|
x ^= x << 5;
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||||||
|
return *seed = x;
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||||||
|
*/
|
||||||
}
|
}
|
||||||
|
|
||||||
// Distribution & sampling functions
|
// Distribution & sampling functions
|
||||||
|
|
|
@ -30,4 +30,7 @@ double array_std(double* array, int length);
|
||||||
// Mixture function
|
// Mixture function
|
||||||
double sample_mixture(double (*samplers[])(uint64_t*), double* weights, int n_dists, uint64_t* seed);
|
double sample_mixture(double (*samplers[])(uint64_t*), double* weights, int n_dists, uint64_t* seed);
|
||||||
|
|
||||||
|
// Macro to mute "unused variable" warning when -Wall -Wextra is enabled. Useful for nested functions
|
||||||
|
#define UNUSED(x) (void)(x)
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|
|
@ -30,7 +30,7 @@ void sampler_parallel(double (*sampler)(uint64_t* seed), double* results, int n_
|
||||||
|
|
||||||
uint64_t** seeds = malloc(n_threads * sizeof(uint64_t*));
|
uint64_t** seeds = malloc(n_threads * sizeof(uint64_t*));
|
||||||
srand(1);
|
srand(1);
|
||||||
for (uint64_t i = 0; i < n_threads; i++) {
|
for (int i = 0; i < n_threads; i++) {
|
||||||
seeds[i] = malloc(sizeof(uint64_t));
|
seeds[i] = malloc(sizeof(uint64_t));
|
||||||
// Constraints:
|
// Constraints:
|
||||||
// - xorshift can't start with 0
|
// - xorshift can't start with 0
|
||||||
|
@ -61,7 +61,7 @@ void sampler_parallel(double (*sampler)(uint64_t* seed), double* results, int n_
|
||||||
// we can just reuse a seed, this isn't problematic because we are not doing multithreading
|
// we can just reuse a seed, this isn't problematic because we are not doing multithreading
|
||||||
}
|
}
|
||||||
|
|
||||||
for (uint64_t i = 0; i < n_threads; i++) {
|
for (int i = 0; i < n_threads; i++) {
|
||||||
free(seeds[i]);
|
free(seeds[i]);
|
||||||
}
|
}
|
||||||
free(seeds);
|
free(seeds);
|
||||||
|
@ -83,6 +83,10 @@ static void swp(int i, int j, double xs[])
|
||||||
|
|
||||||
static int partition(int low, int high, double xs[], int length)
|
static int partition(int low, int high, double xs[], int length)
|
||||||
{
|
{
|
||||||
|
if(low > high || high >= length){
|
||||||
|
printf("Invariant violated for function partition in %s (%d)", __FILE__, __LINE__);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
// Note: the scratchpad/ folder in commit 578bfa27 has printfs sprinkled throughout
|
// Note: the scratchpad/ folder in commit 578bfa27 has printfs sprinkled throughout
|
||||||
int pivot = low + floor((high - low) / 2);
|
int pivot = low + floor((high - low) / 2);
|
||||||
double pivot_value = xs[pivot];
|
double pivot_value = xs[pivot];
|
||||||
|
@ -136,6 +140,7 @@ ci array_get_90_ci(double xs[], int n)
|
||||||
|
|
||||||
ci sampler_get_ci(ci interval, double (*sampler)(uint64_t*), int n, uint64_t* seed)
|
ci sampler_get_ci(ci interval, double (*sampler)(uint64_t*), int n, uint64_t* seed)
|
||||||
{
|
{
|
||||||
|
UNUSED(seed); // don't want to use it right now, but want to preserve ability to do so (e.g., remove parallelism from internals). Also nicer for consistency.
|
||||||
double* xs = malloc(n * sizeof(double));
|
double* xs = malloc(n * sizeof(double));
|
||||||
sampler_parallel(sampler, xs, 16, n);
|
sampler_parallel(sampler, xs, 16, n);
|
||||||
ci result = array_get_ci(interval, xs, n);
|
ci result = array_get_ci(interval, xs, n);
|
||||||
|
@ -216,7 +221,7 @@ typedef struct box_t {
|
||||||
box process_error(const char* error_msg, int should_exit, char* file, int line)
|
box process_error(const char* error_msg, int should_exit, char* file, int line)
|
||||||
{
|
{
|
||||||
if (should_exit) {
|
if (should_exit) {
|
||||||
printf("@, in %s (%d)", file, line);
|
printf("%s, @, in %s (%d)", error_msg, file, line);
|
||||||
exit(1);
|
exit(1);
|
||||||
} else {
|
} else {
|
||||||
char error_msg[MAX_ERROR_LENGTH];
|
char error_msg[MAX_ERROR_LENGTH];
|
||||||
|
|
Loading…
Reference in New Issue
Block a user