| /* |
| * Copyright (c) 2021 Stephanos Ioannidis <root@stephanos.io> |
| * Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/ztest.h> |
| #include <zephyr/kernel.h> |
| #include <stdlib.h> |
| #include <arm_math_f16.h> |
| #include "../../common/test_common.h" |
| |
| #include "f16.pat" |
| |
| #define REL_ERROR_THRESH (3.0e-3) |
| |
| /* Note: this source file is only built when CONFIG_CMSIS_DSP_FLOAT16 is enabled */ |
| |
| ZTEST_SUITE(bayes_f16, NULL, NULL, NULL, NULL, NULL); |
| |
| ZTEST(bayes_f16, test_gaussian_naive_bayes_predict_f16) |
| { |
| arm_gaussian_naive_bayes_instance_f16 inst; |
| |
| size_t index; |
| const uint16_t pattern_count = in_dims[0]; |
| const uint16_t class_count = in_dims[1]; |
| const uint16_t vec_dims = in_dims[2]; |
| |
| const float16_t *params = (const float16_t *)in_param; |
| const float16_t *input = (const float16_t *)in_val; |
| float16_t *output_probs_buf, *output_probs; |
| uint16_t *output_preds_buf, *output_preds; |
| float16_t *temp; |
| |
| /* Initialise instance */ |
| inst.vectorDimension = vec_dims; |
| inst.numberOfClasses = class_count; |
| inst.theta = params; |
| inst.sigma = params + (class_count * vec_dims); |
| inst.classPriors = params + (2 * class_count * vec_dims); |
| inst.epsilon = params[class_count + (2 * class_count * vec_dims)]; |
| |
| /* Allocate output buffers */ |
| output_probs_buf = |
| malloc(pattern_count * class_count * sizeof(float16_t)); |
| zassert_not_null(output_probs_buf, ASSERT_MSG_BUFFER_ALLOC_FAILED); |
| |
| output_preds_buf = |
| malloc(pattern_count * sizeof(uint16_t)); |
| zassert_not_null(output_preds_buf, ASSERT_MSG_BUFFER_ALLOC_FAILED); |
| |
| output_probs = output_probs_buf; |
| output_preds = output_preds_buf; |
| |
| temp = malloc(pattern_count * class_count * sizeof(float16_t)); |
| zassert_not_null(temp, ASSERT_MSG_BUFFER_ALLOC_FAILED); |
| |
| /* Enumerate patterns */ |
| for (index = 0; index < pattern_count; index++) { |
| /* Run test function */ |
| *output_preds = |
| arm_gaussian_naive_bayes_predict_f16( |
| &inst, input, output_probs, temp); |
| |
| /* Increment pointers */ |
| input += vec_dims; |
| output_probs += class_count; |
| output_preds++; |
| } |
| |
| /* Validate output */ |
| zassert_true( |
| test_rel_error_f16(pattern_count, output_probs_buf, |
| (float16_t *)ref_prob, REL_ERROR_THRESH), |
| ASSERT_MSG_REL_ERROR_LIMIT_EXCEED); |
| |
| zassert_true( |
| test_equal_q15(pattern_count, output_preds_buf, ref_pred), |
| ASSERT_MSG_INCORRECT_COMP_RESULT); |
| |
| /* Free output buffers */ |
| free(output_probs_buf); |
| free(output_preds_buf); |
| } |