trueno 0.16.4

High-performance SIMD compute library with GPU support for matrix operations
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377

//! Main UI rendering: tabs, compute tab, memory tab.

use ratatui::{
    layout::{Constraint, Direction, Layout, Rect},
    style::{Color, Modifier, Style},
    text::{Line, Span},
    widgets::{Block, Borders, Gauge, Paragraph, Sparkline, Tabs},
    Frame,
};
use trueno_gpu::monitor::{ComputeDevice, PressureLevel};

use super::render_stress;
use super::{App, GpuState};

/// Map a percentage to a traffic-light color (green/yellow/red).
fn pct_color(pct: f64) -> Color {
    if pct > 90.0 {
        Color::Red
    } else if pct > 70.0 {
        Color::Yellow
    } else {
        Color::Green
    }
}

/// Render a stress-mode banner. Returns the next layout index.
fn render_stress_banner(f: &mut Frame, text: String, chunks: &[Rect], idx: usize) -> usize {
    let banner = Paragraph::new(text)
        .style(Style::default().fg(Color::Black).bg(Color::Yellow).add_modifier(Modifier::BOLD));
    f.render_widget(banner, chunks[idx]);
    idx + 1
}

/// Render a single GPU VRAM gauge. Returns the next layout index.
fn render_gpu_gauge(
    f: &mut Frame,
    gpu: &GpuState,
    gpu_idx: usize,
    stress_active: bool,
    chunks: &[Rect],
    layout_idx: usize,
) -> usize {
    let gpu_color = pct_color(gpu.vram_percent);
    let title = if stress_active {
        format!(" GPU {} [STRESS] {} ", gpu_idx, gpu.info.name)
    } else {
        format!(" GPU {} VRAM: {} ", gpu_idx, gpu.info.name)
    };
    let label =
        format!("{:.1} / {:.1} GB ({:.1}%)", gpu.vram_used_gb, gpu.vram_total_gb, gpu.vram_percent);
    let gauge = Gauge::default()
        .block(Block::default().title(title).borders(Borders::ALL))
        .gauge_style(Style::default().fg(gpu_color))
        .percent(gpu.vram_percent as u16)
        .label(label);
    f.render_widget(gauge, chunks[layout_idx]);
    layout_idx + 1
}

pub(crate) fn ui(f: &mut Frame, app: &App) {
    let size = f.area();

    // Main layout: header, content, footer
    let chunks = Layout::default()
        .direction(Direction::Vertical)
        .constraints([
            Constraint::Length(3), // Header
            Constraint::Min(10),   // Content
            Constraint::Length(3), // Footer
        ])
        .split(size);

    // Header with tabs
    let gpu_count = app.gpus.len();
    let title = if gpu_count > 0 {
        format!(" TRUENO Monitor v0.10.1 | {} GPU(s) ", gpu_count)
    } else {
        " TRUENO Monitor v0.10.1 | No CUDA GPU ".to_string()
    };

    let titles = vec!["Compute", "Memory", "Data Flow", "Stress Test"];
    let tabs = Tabs::new(titles)
        .block(Block::default().borders(Borders::ALL).title(title))
        .select(app.selected_tab)
        .style(Style::default().fg(Color::White))
        .highlight_style(Style::default().fg(Color::Cyan).add_modifier(Modifier::BOLD));
    f.render_widget(tabs, chunks[0]);

    // Content based on selected tab
    match app.selected_tab {
        0 => render_compute_tab(f, app, chunks[1]),
        1 => render_memory_tab(f, app, chunks[1]),
        2 => render_stress::render_dataflow_tab(f, app, chunks[1]),
        3 => render_stress::render_stress_tab(f, app, chunks[1]),
        4.. => {} // No tab at this index; ignore
    }

    // Footer
    let help_text = if app.stress_running {
        " q:Quit  Tab:Switch  s:Stop Stress  ?:Help  |  STRESS TEST RUNNING "
    } else {
        " q:Quit  Tab:Switch  s:Start Stress  ?:Help  |  Refresh: 100ms "
    };
    let footer = Paragraph::new(help_text)
        .style(Style::default().fg(Color::DarkGray))
        .block(Block::default().borders(Borders::ALL));
    f.render_widget(footer, chunks[2]);

    // Help overlay
    if app.show_help {
        render_stress::render_help_overlay(f, size);
    }
}

fn render_compute_tab(f: &mut Frame, app: &App, area: Rect) {
    let mut constraints = vec![];
    if app.stress_running {
        constraints.push(Constraint::Length(1));
    }
    constraints.push(Constraint::Length(3)); // CPU gauge
    constraints.push(Constraint::Length(5)); // CPU sparkline
    constraints.extend(app.gpus.iter().map(|_| Constraint::Length(3)));
    constraints.push(Constraint::Min(3)); // Device info

    let chunks = Layout::default()
        .direction(Direction::Vertical)
        .constraints(constraints)
        .margin(1)
        .split(area);

    let mut idx = 0;

    if app.stress_running {
        let elapsed = app.stress_start.map(|s| s.elapsed().as_secs()).unwrap_or(0);
        idx = render_stress_banner(
            f,
            format!(
                " STRESS TEST ACTIVE | {}s | CPU: {:.1}M ops/s | MEM: {:.1}M pg/s | GPU: {:.2}G xf/s ",
                elapsed,
                app.cpu_ops_per_sec as f64 / 1_000_000.0,
                app.mem_ops_per_sec as f64 / 1_000_000.0,
                app.gpu_ops_per_sec as f64 / 1_000_000_000.0
            ),
            &chunks,
            idx,
        );
    }

    idx = render_cpu_gauge(f, app, &chunks, idx);
    idx = render_cpu_sparkline(f, app, &chunks, idx);

    let stress_active = app.stress_running && !app.gpu_workers.is_empty();
    for (i, gpu) in app.gpus.iter().enumerate() {
        idx = render_gpu_gauge(f, gpu, i, stress_active, &chunks, idx);
    }

    render_device_info(f, app, &chunks, idx);
}

/// Render the CPU utilization gauge. Returns the next layout index.
fn render_cpu_gauge(f: &mut Frame, app: &App, chunks: &[Rect], idx: usize) -> usize {
    let cpu_pct = app.cpu.compute_utilization().unwrap_or(0.0);
    let cpu_title = if app.stress_running {
        format!(" CPU Utilization [STRESS: {} workers] ", app.cpu_workers.len())
    } else {
        " CPU Utilization ".to_string()
    };
    let cpu_gauge = Gauge::default()
        .block(Block::default().title(cpu_title).borders(Borders::ALL))
        .gauge_style(Style::default().fg(pct_color(cpu_pct)))
        .percent(cpu_pct as u16)
        .label(format!("{:.1}%", cpu_pct));
    f.render_widget(cpu_gauge, chunks[idx]);
    idx + 1
}

/// Render the CPU sparkline (60-second history). Returns the next layout index.
fn render_cpu_sparkline(f: &mut Frame, app: &App, chunks: &[Rect], idx: usize) -> usize {
    let sparkline = Sparkline::default()
        .block(Block::default().title(" CPU History (60s) ").borders(Borders::ALL))
        .data(&app.cpu_history)
        .max(100)
        .style(Style::default().fg(Color::Cyan));
    f.render_widget(sparkline, chunks[idx]);
    idx + 1
}

/// Render the device info panel (CPU + GPU summary).
fn render_device_info(f: &mut Frame, app: &App, chunks: &[Rect], idx: usize) {
    let clock = app.cpu.compute_clock_mhz().unwrap_or(0);
    let temp = app.cpu.compute_temperature_c().unwrap_or(0.0);
    let cores = app.cpu.compute_unit_count();
    let temp_color = if temp > 80.0 { Color::Red } else { Color::Green };

    let mut info_lines = vec![
        Line::from(vec![
            Span::styled("CPU: ", Style::default().fg(Color::DarkGray)),
            Span::styled(app.cpu.device_name(), Style::default().fg(Color::White)),
        ]),
        Line::from(vec![
            Span::styled("Cores: ", Style::default().fg(Color::DarkGray)),
            Span::styled(format!("{}", cores), Style::default().fg(Color::Cyan)),
            Span::raw("  "),
            Span::styled("Clock: ", Style::default().fg(Color::DarkGray)),
            Span::styled(format!("{} MHz", clock), Style::default().fg(Color::Cyan)),
            Span::raw("  "),
            Span::styled("Temp: ", Style::default().fg(Color::DarkGray)),
            Span::styled(format!("{:.0}C", temp), Style::default().fg(temp_color)),
        ]),
    ];

    for (i, gpu) in app.gpus.iter().enumerate() {
        info_lines.push(Line::from(vec![
            Span::styled(format!("GPU{}: ", i), Style::default().fg(Color::DarkGray)),
            Span::styled(&gpu.info.name, Style::default().fg(Color::Magenta)),
            Span::styled(
                format!(" ({:.1} GB)", gpu.info.total_memory_gb()),
                Style::default().fg(Color::DarkGray),
            ),
        ]));
    }

    let info = Paragraph::new(info_lines)
        .block(Block::default().title(" Device Info ").borders(Borders::ALL));
    f.render_widget(info, chunks[idx]);
}

fn render_memory_tab(f: &mut Frame, app: &App, area: Rect) {
    let mut constraints = vec![];
    if app.stress_running {
        constraints.push(Constraint::Length(1));
    }
    constraints.push(Constraint::Length(3)); // RAM gauge
    constraints.push(Constraint::Length(3)); // SWAP gauge
    constraints.extend(app.gpus.iter().map(|_| Constraint::Length(3)));
    constraints.push(Constraint::Length(5)); // Memory sparkline
    constraints.push(Constraint::Min(3)); // Pressure info

    let chunks = Layout::default()
        .direction(Direction::Vertical)
        .constraints(constraints)
        .margin(1)
        .split(area);

    let mut idx = 0;

    if app.stress_running {
        idx = render_stress_banner(
            f,
            format!(
                " STRESS: Allocating 512MB + {} GPU buffers | RAM pressure: {} ",
                app.gpu_workers.len() * 8,
                app.memory.pressure_level
            ),
            &chunks,
            idx,
        );
    }

    idx = render_ram_gauge(f, app, &chunks, idx);
    idx = render_swap_gauge(f, app, &chunks, idx);

    let stress_active = app.stress_running && !app.gpu_workers.is_empty();
    for (i, gpu) in app.gpus.iter().enumerate() {
        idx = render_vram_gauge(f, gpu, i, stress_active, &chunks, idx);
    }

    idx = render_mem_sparkline(f, app, &chunks, idx);
    render_pressure_info(f, app, &chunks, idx);
}

/// Render the RAM usage gauge. Returns the next layout index.
fn render_ram_gauge(f: &mut Frame, app: &App, chunks: &[Rect], idx: usize) -> usize {
    let ram_pct = app.memory.ram_usage_percent();
    let ram_color = pressure_color(&app.memory.pressure_level);
    let ram_used_gb = app.memory.ram_used_bytes as f64 / (1024.0 * 1024.0 * 1024.0);
    let ram_total_gb = app.memory.ram_total_bytes as f64 / (1024.0 * 1024.0 * 1024.0);
    let ram_title = if app.stress_running { " RAM [STRESS ACTIVE] " } else { " RAM " };
    let ram_gauge = Gauge::default()
        .block(Block::default().title(ram_title).borders(Borders::ALL))
        .gauge_style(Style::default().fg(ram_color))
        .percent(ram_pct as u16)
        .label(format!("{:.1} / {:.1} GB ({:.1}%)", ram_used_gb, ram_total_gb, ram_pct));
    f.render_widget(ram_gauge, chunks[idx]);
    idx + 1
}

/// Render the SWAP usage gauge. Returns the next layout index.
fn render_swap_gauge(f: &mut Frame, app: &App, chunks: &[Rect], idx: usize) -> usize {
    let swap_pct = app.memory.swap_usage_percent();
    let swap_used_gb = app.memory.swap_used_bytes as f64 / (1024.0 * 1024.0 * 1024.0);
    let swap_total_gb = app.memory.swap_total_bytes as f64 / (1024.0 * 1024.0 * 1024.0);
    let swap_color = if swap_pct > 50.0 { Color::Yellow } else { Color::Blue };
    let swap_gauge = Gauge::default()
        .block(Block::default().title(" SWAP ").borders(Borders::ALL))
        .gauge_style(Style::default().fg(swap_color))
        .percent(swap_pct as u16)
        .label(format!("{:.1} / {:.1} GB ({:.1}%)", swap_used_gb, swap_total_gb, swap_pct));
    f.render_widget(swap_gauge, chunks[idx]);
    idx + 1
}

/// Map a `PressureLevel` to a display color.
fn pressure_color(level: &PressureLevel) -> Color {
    match level {
        PressureLevel::Ok => Color::Green,
        PressureLevel::Elevated => Color::Yellow,
        PressureLevel::Warning => Color::Rgb(255, 165, 0),
        PressureLevel::Critical => Color::Red,
    }
}

/// Render a single GPU VRAM gauge in the memory tab. Returns the next layout index.
fn render_vram_gauge(
    f: &mut Frame,
    gpu: &GpuState,
    gpu_idx: usize,
    stress_active: bool,
    chunks: &[Rect],
    layout_idx: usize,
) -> usize {
    let vram_color = pct_color(gpu.vram_percent);
    let title = if stress_active {
        format!(" VRAM {} [STRESS] ", gpu_idx)
    } else {
        format!(" VRAM {} [{}] ", gpu_idx, gpu.info.name)
    };
    let vram_gauge = Gauge::default()
        .block(Block::default().title(title).borders(Borders::ALL))
        .gauge_style(Style::default().fg(vram_color))
        .percent(gpu.vram_percent as u16)
        .label(format!(
            "{:.1} / {:.1} GB ({:.1}%)",
            gpu.vram_used_gb, gpu.vram_total_gb, gpu.vram_percent
        ));
    f.render_widget(vram_gauge, chunks[layout_idx]);
    layout_idx + 1
}

/// Render the memory sparkline (60-second history). Returns the next layout index.
fn render_mem_sparkline(f: &mut Frame, app: &App, chunks: &[Rect], idx: usize) -> usize {
    let sparkline = Sparkline::default()
        .block(Block::default().title(" Memory History (60s) ").borders(Borders::ALL))
        .data(&app.mem_history)
        .max(100)
        .style(Style::default().fg(Color::Magenta));
    f.render_widget(sparkline, chunks[idx]);
    idx + 1
}

/// Render the memory pressure info panel.
fn render_pressure_info(f: &mut Frame, app: &App, chunks: &[Rect], idx: usize) {
    let (label, color, desc) = match app.memory.pressure_level {
        PressureLevel::Ok => ("OK", Color::Green, ">= 50% available"),
        PressureLevel::Elevated => ("ELEVATED", Color::Yellow, "30-50% available"),
        PressureLevel::Warning => ("WARNING", Color::Rgb(255, 165, 0), "15-30% available"),
        PressureLevel::Critical => ("CRITICAL", Color::Red, "< 15% available"),
    };

    let pressure_text = vec![
        Line::from(vec![
            Span::styled("Pressure Level: ", Style::default().fg(Color::DarkGray)),
            Span::styled(label, Style::default().fg(color).add_modifier(Modifier::BOLD)),
            Span::styled(format!(" ({})", desc), Style::default().fg(Color::DarkGray)),
        ]),
        Line::from(vec![
            Span::styled("Safe Parallel Jobs: ", Style::default().fg(Color::DarkGray)),
            Span::styled(
                format!("{}", app.memory.safe_parallel_jobs),
                Style::default().fg(Color::Cyan),
            ),
        ]),
    ];
    let pressure = Paragraph::new(pressure_text)
        .block(Block::default().title(" Memory Pressure (LAMBDA-0002) ").borders(Borders::ALL));
    f.render_widget(pressure, chunks[idx]);
}