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blt-gp
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silly tables

shared
Brett 2024-08-20 21:58:29 -04:00
parent 17a2805ef1
commit 24f702b35e
4 changed files with 52 additions and 30 deletions
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2
CMakeLists.txt
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@ -1,5 +1,5 @@
cmake_minimum_required(VERSION 3.25) cmake_minimum_required(VERSION 3.25)
project(blt-gp VERSION 0.1.15) project(blt-gp VERSION 0.1.16)
include(CTest) include(CTest)

2
examples/symbolic_regression.cpp
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@ -39,7 +39,7 @@ blt::gp::prog_config_t config = blt::gp::prog_config_t()
.set_mutation_chance(0.1) .set_mutation_chance(0.1)
.set_reproduction_chance(0) .set_reproduction_chance(0)
.set_max_generations(50) .set_max_generations(50)
.set_pop_size(500) .set_pop_size(5000)
.set_thread_count(0); .set_thread_count(0);
blt::gp::type_provider type_system; blt::gp::type_provider type_system;

43
include/blt/gp/program.h
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@ -120,21 +120,22 @@ namespace blt::gp
const auto& vals = tree.get_values(); const auto& vals = tree.get_values();
evaluation_context results{}; evaluation_context results{};
results.values.reserve(largest);
auto value_stack = vals;
auto& values_process = results.values;
static thread_local detail::bitmask_t bitfield; static thread_local detail::bitmask_t bitfield;
bitfield.clear(); bitfield.clear();
blt::size_t total_so_far = 0;
for (const auto& operation : blt::reverse_iterate(ops.begin(), ops.end())) for (const auto& operation : blt::reverse_iterate(ops.begin(), ops.end()))
{ {
if (operation.is_value) if (operation.is_value)
{ {
value_stack.transfer_bytes(values_process, operation.type_size); total_so_far += stack_allocator::aligned_size(operation.type_size);
results.values.copy_from(vals.from(total_so_far), stack_allocator::aligned_size(operation.type_size));
bitfield.push_back(false); bitfield.push_back(false);
continue; continue;
} }
call_jmp_table(operation.id, context, values_process, values_process, &bitfield, operators...); call_jmp_table(operation.id, context, results.values, results.values, &bitfield, operators...);
bitfield.push_back(true); bitfield.push_back(true);
} }
@ -212,7 +213,7 @@ namespace blt::gp
auto add_operator(operation_t<RawFunction, Return(Args...)>& op) auto add_operator(operation_t<RawFunction, Return(Args...)>& op)
{ {
auto total_size_required = stack_allocator::aligned_size(sizeof(Return)); auto total_size_required = stack_allocator::aligned_size(sizeof(Return));
((total_size_required += stack_allocator::aligned_size(sizeof(Args))) , ...); ((total_size_required += stack_allocator::aligned_size(sizeof(Args))), ...);
auto return_type_id = system.get_type<Return>().id(); auto return_type_id = system.get_type<Return>().id();
auto operator_id = blt::gp::operator_id(storage.operators.size()); auto operator_id = blt::gp::operator_id(storage.operators.size());
@ -276,19 +277,26 @@ namespace blt::gp
} }
} }
template<bool HasContext, size_t id, typename Lambda> template<typename Lambda>
static inline bool execute(size_t op, void* context, stack_allocator& write_stack, stack_allocator& read_stack, detail::bitmask_t* mask, static inline void execute(void* context, stack_allocator& write_stack, stack_allocator& read_stack, detail::bitmask_t* mask,
Lambda lambda) Lambda& lambda)
{ {
if (op == id) if constexpr (std::is_same_v<detail::remove_cv_ref<typename Lambda::First_Arg>, Context>)
{
if constexpr (HasContext)
{ {
write_stack.push(lambda(context, read_stack, mask)); write_stack.push(lambda(context, read_stack, mask));
} else } else
{ {
write_stack.push(lambda(read_stack, mask)); write_stack.push(lambda(read_stack, mask));
} }
}
template<blt::size_t id, typename Lambda>
static inline bool call(blt::size_t op, void* context, stack_allocator& write_stack, stack_allocator& read_stack, detail::bitmask_t* mask,
Lambda& lambda)
{
if (id == op)
{
execute(context, write_stack, read_stack, mask, lambda);
return false; return false;
} }
return true; return true;
@ -296,17 +304,20 @@ namespace blt::gp
template<typename... Lambdas, size_t... operator_ids> template<typename... Lambdas, size_t... operator_ids>
static inline void call_jmp_table_internal(size_t op, void* context, stack_allocator& write_stack, stack_allocator& read_stack, static inline void call_jmp_table_internal(size_t op, void* context, stack_allocator& write_stack, stack_allocator& read_stack,
detail::bitmask_t* mask, std::integer_sequence<size_t, operator_ids...>, Lambdas... lambdas) detail::bitmask_t* mask, std::integer_sequence<size_t, operator_ids...>, Lambdas& ... lambdas)
{
if (op >= sizeof...(operator_ids))
{ {
if (op > sizeof...(operator_ids))
BLT_UNREACHABLE; BLT_UNREACHABLE;
(execute<detail::is_same_v<typename Lambdas::First_Arg, Context>, operator_ids>( }
op, context, write_stack, read_stack, mask, lambdas) && ...); (call<operator_ids>(op, context, write_stack, read_stack, mask, lambdas) && ...);
// std::initializer_list<int>{((op == operator_ids) ? (execute(context, write_stack, read_stack, mask, lambdas), 0) : 0)...};
} }
template<typename... Lambdas> template<typename... Lambdas>
static inline void call_jmp_table(size_t op, void* context, stack_allocator& write_stack, stack_allocator& read_stack, static inline void call_jmp_table(size_t op, void* context, stack_allocator& write_stack, stack_allocator& read_stack,
detail::bitmask_t* mask, Lambdas... lambdas) detail::bitmask_t* mask, Lambdas& ... lambdas)
{ {
call_jmp_table_internal(op, context, write_stack, read_stack, mask, std::index_sequence_for<Lambdas...>(), call_jmp_table_internal(op, context, write_stack, read_stack, mask, std::index_sequence_for<Lambdas...>(),
lambdas...); lambdas...);

25
include/blt/gp/stack.h
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@ -66,6 +66,7 @@ namespace blt::gp
using Allocator = aligned_allocator; using Allocator = aligned_allocator;
public: public:
static Allocator& get_allocator(); static Allocator& get_allocator();
struct size_data_t struct size_data_t
{ {
blt::size_t total_size_bytes = 0; blt::size_t total_size_bytes = 0;
@ -185,18 +186,22 @@ namespace blt::gp
return *reinterpret_cast<T*>(data_ + bytes_stored); return *reinterpret_cast<T*>(data_ + bytes_stored);
} }
[[nodiscard]] blt::u8* from(blt::size_t bytes) const
{
#if BLT_DEBUG_LEVEL > 0
if (bytes_stored < bytes)
BLT_ABORT(("Not enough bytes in stack to reference " + std::to_string(bytes) + " bytes requested but " + std::to_string(bytes) +
" bytes stored!").c_str());
#endif
return data_ + (bytes_stored - bytes);
}
template<typename T, typename NO_REF = NO_REF_T<T>> template<typename T, typename NO_REF = NO_REF_T<T>>
T& from(blt::size_t bytes) T& from(blt::size_t bytes)
{ {
static_assert(std::is_trivially_copyable_v<NO_REF> && "Type must be bitwise copyable!"); static_assert(std::is_trivially_copyable_v<NO_REF> && "Type must be bitwise copyable!");
static_assert(alignof(NO_REF) <= MAX_ALIGNMENT && "Type alignment must not be greater than the max alignment!"); static_assert(alignof(NO_REF) <= MAX_ALIGNMENT && "Type alignment must not be greater than the max alignment!");
auto size = aligned_size(sizeof(NO_REF)) + bytes; return *reinterpret_cast<NO_REF*>(from(aligned_size(sizeof(NO_REF)) + bytes));
#if BLT_DEBUG_LEVEL > 0
if (bytes_stored < size)
BLT_ABORT(("Not enough bytes in stack to reference " + std::to_string(size) + " bytes requested but " + std::to_string(bytes) +
" bytes stored!").c_str());
#endif
return *reinterpret_cast<NO_REF*>(data_ + (bytes_stored - size));
} }
void pop_bytes(blt::size_t bytes) void pop_bytes(blt::size_t bytes)
@ -267,6 +272,12 @@ namespace blt::gp
return data; return data;
} }
void reserve(blt::size_t bytes)
{
if (bytes > size_)
expand(bytes);
}
private: private:
void expand(blt::size_t bytes) void expand(blt::size_t bytes)
{ {