{"ts": "2026-10-15T07:36:34.012688+00:00", "type": "start", "config": {"goal": "Port saxpy.cu to idiomatic SYCL 2020 with zero dpct helpers; the float32 output must match the C++ reference within atol 1e-6.", "cuda_path": "examples/saxpy/saxpy.cu", "reference_cmd": "build/reference {output}", "candidate_cmd": "build/candidate {output}", "inputs": [], "reference_build": ["g++", "-O2", "-std=c++17", "examples/saxpy/saxpy_ref.cpp", "-o", "build/reference"], "candidate_binary": "build/candidate", "base_flags": ["-O2"], "extra_include_dirs": [], "tolerance": 1e-06, "rtol": 0.0, "mode": "array", "threshold_dbfs": -96.0, "benchmark_runs": 5, "max_iterations": 12, "max_total_tokens": 600000, "max_cost_usd": 5.0, "stuck_threshold": 3, "model": "claude-sonnet-5-5", "name": "saxpy"}, "model": "scripted-dry-run", "run_dir": "runs/20261015T073634012267Z"}
{"ts": "2026-10-15T07:36:34.271102+00:00", "type": "reference_build", "run": {"command": "g++ -O2 -std=c++17 examples/saxpy/saxpy_ref.cpp -o build/reference", "returncode": 0, "duration_s": 0.25817, "stdout": "", "stderr": "", "cwd": "runs/20261015T073634012267Z/work"}}
{"ts": "2026-10-15T07:36:34.271328+00:00", "type": "model_response", "iteration": 1, "stop_reason": "tool_use", "content": [{"type": "text", "text": "[scripted turn 1]"}, {"type": "tool_use", "id": "toolu_dry_001_0", "name": "migrate", "input": {}}], "usage": {"input_tokens": 1500, "output_tokens": 200, "cache_creation_input_tokens": 0, "cache_read_input_tokens": 0}, "model": "scripted-dry-run"}
{"ts": "2026-10-15T07:36:34.271453+00:00", "type": "tool_call", "iteration": 1, "name": "migrate", "input": {}}
{"ts": "2026-10-15T07:36:36.251275+00:00", "type": "tool_result", "iteration": 1, "name": "migrate", "input": {}, "source_hash": "e53316efe9db7d67", "result": {"tool": "migrate", "status": "ok", "summary": "migrated 1 CUDA file(s) -> 1 file(s); 1 DPCT warning(s) (DPCT1009x1)", "evidence": {"run": {"command": "/opt/syclomatic/bin/c2s --in-root=examples/saxpy --out-root=runs/20261015T073634012267Z/work/migrated --cuda-include-path=/opt/cuda-headers/targets/x86_64-linux/include examples/saxpy/saxpy.cu", "returncode": 0, "duration_s": 1.977536, "stdout": "NOTE: Could not auto-detect compilation database for file 'saxpy.cu' in 'examples/saxpy' or any parent directory.\nParsing: examples/saxpy/saxpy.cu\nAnalyzing: examples/saxpy/saxpy.cu\nMigrating: examples/saxpy/saxpy.cu\nProcessed 1 file(s) in -in-root folder \"examples/saxpy\"\n\nSee Diagnostics Reference to resolve warnings and complete the migration:\nhttps://oneapi-src.github.io/SYCLomatic/dev_guide/reference/diagnostics-reference.html\n", "stderr": "examples/saxpy/saxpy.cu:34:46: warning: DPCT1009:0: SYCL reports errors using exceptions and does not use error codes. Please replace the \"get_error_string_dummy(...)\" with a real error-handling function.\n   34 |     std::fprintf(stderr, \"CUDA error: %s\\n\", cudaGetErrorString(err));\n      |                                              ^\n\n"}, "input_files": ["examples/saxpy/saxpy.cu"], "in_root": "examples/saxpy", "out_dir": "runs/20261015T073634012267Z/work/migrated", "migrated_files": ["saxpy.dp.cpp"], "warnings": [{"code": "DPCT1009", "id": 0, "message": "SYCL reports errors using exceptions and does not use error codes. Please replace the \"get_error_string_dummy(...)\" with a real error-handling function.", "file": "examples/saxpy/saxpy.cu", "line": 34, "column": 46, "migrated_file": null, "migrated_line": null}], "warning_counts": {"DPCT1009": 1}, "errors": []}, "limitations": ["c2s output compiles only with the dpct helper headers on the include path (<c2s install>/include).", "Migration warnings say what c2s could not translate; they do not prove the rest is correct. Run compile + verify."]}}
{"ts": "2026-10-15T07:36:36.252170+00:00", "type": "model_response", "iteration": 2, "stop_reason": "tool_use", "content": [{"type": "text", "text": "[scripted turn 2]"}, {"type": "tool_use", "id": "toolu_dry_002_0", "name": "list_files", "input": {"path": "migrated"}}], "usage": {"input_tokens": 1500, "output_tokens": 200, "cache_creation_input_tokens": 0, "cache_read_input_tokens": 0}, "model": "scripted-dry-run"}
{"ts": "2026-10-15T07:36:36.252248+00:00", "type": "tool_call", "iteration": 2, "name": "list_files", "input": {"path": "migrated"}}
{"ts": "2026-10-15T07:36:36.252824+00:00", "type": "tool_result", "iteration": 2, "name": "list_files", "input": {"path": "migrated"}, "source_hash": "e53316efe9db7d67", "result": {"tool": "list_files", "status": "ok", "summary": "2 file(s)", "evidence": {"files": ["migrated/MainSourceFiles.yaml", "migrated/saxpy.dp.cpp"]}, "limitations": []}}
{"ts": "2026-10-15T07:36:36.253426+00:00", "type": "model_response", "iteration": 3, "stop_reason": "tool_use", "content": [{"type": "text", "text": "[scripted turn 3]"}, {"type": "tool_use", "id": "toolu_dry_003_0", "name": "compile", "input": {"sources": ["migrated/saxpy.dp.cpp"]}}], "usage": {"input_tokens": 1500, "output_tokens": 200, "cache_creation_input_tokens": 0, "cache_read_input_tokens": 0}, "model": "scripted-dry-run"}
{"ts": "2026-10-15T07:36:36.253513+00:00", "type": "tool_call", "iteration": 3, "name": "compile", "input": {"sources": ["migrated/saxpy.dp.cpp"]}}
{"ts": "2026-10-15T07:36:44.282451+00:00", "type": "tool_result", "iteration": 3, "name": "compile", "input": {"sources": ["migrated/saxpy.dp.cpp"]}, "source_hash": "e53316efe9db7d67", "result": {"tool": "compile", "status": "ok", "summary": "compiled 1 source(s) -> runs/20261015T073634012267Z/work/build/candidate (0 warning(s))", "evidence": {"run": {"command": "/opt/dpcpp/bin/icpx -fsycl -O2 -I/opt/syclomatic/include runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp -o runs/20261015T073634012267Z/work/build/candidate", "returncode": 0, "duration_s": 8.027948, "stdout": "", "stderr": ""}, "output": "runs/20261015T073634012267Z/work/build/candidate", "dpct_include_added": "/opt/syclomatic/include", "diagnostics": [], "counts": {"error": 0, "warning": 0, "note": 0}}, "limitations": ["A successful compile says nothing about numerical correctness; run verify."]}}
{"ts": "2026-10-15T07:36:44.282974+00:00", "type": "model_response", "iteration": 4, "stop_reason": "tool_use", "content": [{"type": "text", "text": "[scripted turn 4]"}, {"type": "tool_use", "id": "toolu_dry_004_0", "name": "scan_helpers", "input": {"path": "migrated"}}], "usage": {"input_tokens": 1500, "output_tokens": 200, "cache_creation_input_tokens": 0, "cache_read_input_tokens": 0}, "model": "scripted-dry-run"}
{"ts": "2026-10-15T07:36:44.283037+00:00", "type": "tool_call", "iteration": 4, "name": "scan_helpers", "input": {"path": "migrated"}}
{"ts": "2026-10-15T07:36:44.287175+00:00", "type": "tool_result", "iteration": 4, "name": "scan_helpers", "input": {"path": "migrated"}, "source_hash": "e53316efe9db7d67", "result": {"tool": "scan_helpers", "status": "fail", "summary": "11 dpct helper use(s) remain in 1 file(s) (events_timing=3, macro=2, device_queue_management=2, memory_management=2)", "evidence": {"path": "runs/20261015T073634012267Z/work/migrated", "files_scanned": 1, "total": 11, "by_category": {"events_timing": 3, "macro": 2, "device_queue_management": 2, "memory_management": 2, "include": 1, "error_handling": 1}, "by_symbol": {"dpct::sync_barrier": 2, "dpct::dpct_free": 2, "#include <dpct/dpct.hpp>": 1, "DPCT_PROFILING_ENABLED": 1, "dpct::device_ext": 1, "dpct::get_current_device": 1, "dpct::event_ptr": 1, "dpct::err0": 1, "DPCT_CHECK_ERROR": 1}, "by_file": {"saxpy.dp.cpp": 11}, "occurrences": [{"file": "saxpy.dp.cpp", "line": 5, "symbol": "#include <dpct/dpct.hpp>", "category": "include", "text": "#include <dpct/dpct.hpp>"}, {"file": "saxpy.dp.cpp", "line": 3, "symbol": "DPCT_PROFILING_ENABLED", "category": "macro", "text": "#define DPCT_PROFILING_ENABLED"}, {"file": "saxpy.dp.cpp", "line": 17, "symbol": "dpct::device_ext", "category": "device_queue_management", "text": "dpct::device_ext &dev_ct1 = dpct::get_current_device();"}, {"file": "saxpy.dp.cpp", "line": 17, "symbol": "dpct::get_current_device", "category": "device_queue_management", "text": "dpct::device_ext &dev_ct1 = dpct::get_current_device();"}, {"file": "saxpy.dp.cpp", "line": 32, "symbol": "dpct::event_ptr", "category": "events_timing", "text": "dpct::event_ptr start, stop;"}, {"file": "saxpy.dp.cpp", "line": 35, "symbol": "dpct::sync_barrier", "category": "events_timing", "text": "dpct::sync_barrier(start);"}, {"file": "saxpy.dp.cpp", "line": 42, "symbol": "dpct::sync_barrier", "category": "events_timing", "text": "dpct::sync_barrier(stop);"}, {"file": "saxpy.dp.cpp", "line": 43, "symbol": "dpct::err0", "category": "error_handling", "text": "dpct::err0 err = DPCT_CHECK_ERROR(dev_ct1.queues_wait_and_throw());"}, {"file": "saxpy.dp.cpp", "line": 43, "symbol": "DPCT_CHECK_ERROR", "category": "macro", "text": "dpct::err0 err = DPCT_CHECK_ERROR(dev_ct1.queues_wait_and_throw());"}, {"file": "saxpy.dp.cpp", "line": 55, "symbol": "dpct::dpct_free", "category": "memory_management", "text": "dpct::dpct_free(x, q_ct1);"}, {"file": "saxpy.dp.cpp", "line": 56, "symbol": "dpct::dpct_free", "category": "memory_management", "text": "dpct::dpct_free(y, q_ct1);"}], "occurrences_truncated": 0, "suggestions": {"include": "Remove #include <dpct/...> once no dpct:: symbols remain.", "macro": "Remove DPCT_* macros (e.g. DPCT_CHECK_ERROR, DPCT_PROFILING_ENABLED) and use plain SYCL.", "device_queue_management": "Own an explicit sycl::queue (e.g. created once in main and passed down) instead of dpct::get_current_device()/in_order_queue(); query device info with q.get_device().get_info<sycl::info::device::...>().", "events_timing": "Use sycl::event returned by submit/parallel_for; for timing create the queue with sycl::property::queue::enable_profiling and read event.get_profiling_info<...>().", "error_handling": "SYCL reports errors with exceptions: delete dpct::err0/DPCT_CHECK_ERROR plumbing and wrap the work in try { ... } catch (const sycl::exception&) plus an async_handler on the queue.", "memory_management": "Use sycl::malloc_device/malloc_shared + q.memcpy/q.memset + sycl::free(ptr, q). Replace dpct::constant_memory/global_memory with a plain USM allocation or a kernel argument."}, "unresolved_dpct_comments": [], "advisories": [{"kind": "nd_item3_for_1d", "file": "saxpy.dp.cpp", "line": 36, "advice": "1-D launch expressed as a 3-D nd_range with leading 1s (dpct idiom). An idiomatic port uses sycl::range<1>/nd_range<1>."}, {"kind": "nd_item3_for_1d", "file": "saxpy.dp.cpp", "line": 37, "advice": "1-D launch expressed as a 3-D nd_range with leading 1s (dpct idiom). An idiomatic port uses sycl::range<1>/nd_range<1>."}, {"kind": "nd_item3_for_1d", "file": "saxpy.dp.cpp", "line": 38, "advice": "1-D launch expressed as a 3-D nd_range with leading 1s (dpct idiom). An idiomatic port uses sycl::range<1>/nd_range<1>."}, {"kind": "free_function_item_query", "file": "saxpy.dp.cpp", "line": 10, "advice": "Kernel fetches its nd_item via this_work_item::get_nd_item (extension). Passing the item as a lambda parameter is more portable."}]}, "limitations": ["Static text scan: macros that expand to dpct:: calls, or helpers reached through user-defined wrappers, are not detected.", "Zero helpers means the code no longer depends on dpct headers; it does not prove the code is correct or fast. Run compile + verify + benchmark."]}}
{"ts": "2026-10-15T07:36:44.287763+00:00", "type": "model_response", "iteration": 5, "stop_reason": "tool_use", "content": [{"type": "text", "text": "[scripted turn 5]"}, {"type": "tool_use", "id": "toolu_dry_005_0", "name": "write_file", "input": {"path": "migrated/saxpy.dp.cpp", "content": "// Hand-written idiomatic SYCL 2020 port of saxpy.cu (the target end state; no dpct helpers).\n// Usage: saxpy <out.bin> [n=1048576]\n\n#include <cstdio>\n#include <cstdlib>\n\nint main(int argc, char** argv) {\n  if (argc < 2) {\n    std::fprintf(stderr, \"usage: %s out.bin [n]\\n\", argv[0]);\n    return 2;\n  }\n  const size_t n = argc > 2 ? std::strtoul(argv[2], nullptr, 10) : (1u << 20);\n  const float a = 2.5f;\n  try {\n    sycl::queue q{sycl::property::queue::enable_profiling{}};\n    float* x = sycl::malloc_shared<float>(n, q);\n    float* y = sycl::malloc_shared<float>(n, q);\n    for (size_t i = 0; i < n; ++i) {\n      x[i] = static_cast<float>(i % 1000) * 0.001f;\n      y[i] = static_cast<float>((i * 7) % 1000) * 0.002f;\n    }\n    sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {\n      y[i] = a * x[i] + y[i];\n    });\n    e.wait_and_throw();\n    const double ms =\n        (e.get_profiling_info<sycl::info::event_profiling::command_end>() -\n         e.get_profiling_info<sycl::info::event_profiling::command_start>()) * 1e-6;\n    std::printf(\"kernel_ms=%f\\n\", ms);\n    FILE* f = std::fopen(argv[1], \"wb\");\n    if (!f || std::fwrite(y, sizeof(float), n, f) != n) return 1;\n    std::fclose(f);\n    sycl::free(x, q);\n    sycl::free(y, q);\n  } catch (const sycl::exception& ex) {\n    std::fprintf(stderr, \"SYCL error: %s\\n\", ex.what());\n    return 1;\n  }\n  return 0;\n}\n"}}, {"type": "tool_use", "id": "toolu_dry_005_1", "name": "compile", "input": {"sources": ["migrated/saxpy.dp.cpp"], "add_dpct_include": false}}], "usage": {"input_tokens": 1500, "output_tokens": 200, "cache_creation_input_tokens": 0, "cache_read_input_tokens": 0}, "model": "scripted-dry-run"}
{"ts": "2026-10-15T07:36:44.287831+00:00", "type": "tool_call", "iteration": 5, "name": "write_file", "input": {"path": "migrated/saxpy.dp.cpp", "content": "// Hand-written idiomatic SYCL 2020 port of saxpy.cu (the target end state; no dpct helpers).\n// Usage: saxpy <out.bin> [n=1048576]\n\n#include <cstdio>\n#include <cstdlib>\n\nint main(int argc, char** argv) {\n  if (argc < 2) {\n    std::fprintf(stderr, \"usage: %s out.bin [n]\\n\", argv[0]);\n    return 2;\n  }\n  const size_t n = argc > 2 ? std::strtoul(argv[2], nullptr, 10) : (1u << 20);\n  const float a = 2.5f;\n  try {\n    sycl::queue q{sycl::property::queue::enable_profiling{}};\n    float* x = sycl::malloc_shared<float>(n, q);\n    float* y = sycl::malloc_shared<float>(n, q);\n    for (size_t i = 0; i < n; ++i) {\n      x[i] = static_cast<float>(i % 1000) * 0.001f;\n      y[i] = static_cast<float>((i * 7) % 1000) * 0.002f;\n    }\n    sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {\n      y[i] = a * x[i] + y[i];\n    });\n    e.wait_and_throw();\n    const double ms =\n        (e.get_profiling_info<sycl::info::event_profiling::command_end>() -\n         e.get_profiling_info<sycl::info::event_profiling::command_start>()) * 1e-6;\n    std::printf(\"kernel_ms=%f\\n\", ms);\n    FILE* f = std::fopen(argv[1], \"wb\");\n    if (!f || std::fwrite(y, sizeof(float), n, f) != n) return 1;\n    std::fclose(f);\n    sycl::free(x, q);\n    sycl::free(y, q);\n  } catch (const sycl::exception& ex) {\n    std::fprintf(stderr, \"SYCL error: %s\\n\", ex.what());\n    return 1;\n  }\n  return 0;\n}\n"}}
{"ts": "2026-10-15T07:36:44.288778+00:00", "type": "tool_result", "iteration": 5, "name": "write_file", "input": {"path": "migrated/saxpy.dp.cpp", "content": "// Hand-written idiomatic SYCL 2020 port of saxpy.cu (the target end state; no dpct helpers).\n// Usage: saxpy <out.bin> [n=1048576]\n\n#include <cstdio>\n#include <cstdlib>\n\nint main(int argc, char** argv) {\n  if (argc < 2) {\n    std::fprintf(stderr, \"usage: %s out.bin [n]\\n\", argv[0]);\n    return 2;\n  }\n  const size_t n = argc > 2 ? std::strtoul(argv[2], nullptr, 10) : (1u << 20);\n  const float a = 2.5f;\n  try {\n    sycl::queue q{sycl::property::queue::enable_profiling{}};\n    float* x = sycl::malloc_shared<float>(n, q);\n    float* y = sycl::malloc_shared<float>(n, q);\n    for (size_t i = 0; i < n; ++i) {\n      x[i] = static_cast<float>(i % 1000) * 0.001f;\n      y[i] = static_cast<float>((i * 7) % 1000) * 0.002f;\n    }\n    sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {\n      y[i] = a * x[i] + y[i];\n    });\n    e.wait_and_throw();\n    const double ms =\n        (e.get_profiling_info<sycl::info::event_profiling::command_end>() -\n         e.get_profiling_info<sycl::info::event_profiling::command_start>()) * 1e-6;\n    std::printf(\"kernel_ms=%f\\n\", ms);\n    FILE* f = std::fopen(argv[1], \"wb\");\n    if (!f || std::fwrite(y, sizeof(float), n, f) != n) return 1;\n    std::fclose(f);\n    sycl::free(x, q);\n    sycl::free(y, q);\n  } catch (const sycl::exception& ex) {\n    std::fprintf(stderr, \"SYCL error: %s\\n\", ex.what());\n    return 1;\n  }\n  return 0;\n}\n"}, "source_hash": "d01acb4d215a8b07", "result": {"tool": "write_file", "status": "ok", "summary": "wrote migrated/saxpy.dp.cpp (1386 chars)", "evidence": {"path": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp"}, "limitations": []}}
{"ts": "2026-10-15T07:36:44.288849+00:00", "type": "tool_call", "iteration": 5, "name": "compile", "input": {"sources": ["migrated/saxpy.dp.cpp"], "add_dpct_include": false}}
{"ts": "2026-10-15T07:36:44.347427+00:00", "type": "tool_result", "iteration": 5, "name": "compile", "input": {"sources": ["migrated/saxpy.dp.cpp"], "add_dpct_include": false}, "source_hash": "d01acb4d215a8b07", "result": {"tool": "compile", "status": "fail", "summary": "compile failed with 15 error(s) at runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:15: use of undeclared identifier 'sycl'", "evidence": {"run": {"command": "/opt/dpcpp/bin/icpx -fsycl -O2 runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp -o runs/20261015T073634012267Z/work/build/candidate", "returncode": 1, "duration_s": 0.057587, "stdout": "", "stderr": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:15:5: error: use of undeclared identifier 'sycl'\n   15 |     sycl::queue q{sycl::property::queue::enable_profiling{}};\n      |     ^\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:15:19: error: use of undeclared identifier 'sycl'\n   15 |     sycl::queue q{sycl::property::queue::enable_profiling{}};\n      |                   ^\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:16:16: error: use of undeclared identifier 'sycl'\n   16 |     float* x = sycl::malloc_shared<float>(n, q);\n      |                ^\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:16:41: error: expected '(' for function-style cast or type construction\n   16 |     float* x = sycl::malloc_shared<float>(n, q);\n      |                                    ~~~~~^\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:17:16: error: use of undeclared identifier 'sycl'\n   17 |     float* y = sycl::malloc_shared<float>(n, q);\n      |                ^\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:17:41: error: expected '(' for function-style cast or type construction\n   17 |     float* y = sycl::malloc_shared<float>(n, q);\n      |                                    ~~~~~^\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:22:5: error: use of undeclared identifier 'sycl'\n   22 |     sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {\n      |     ^\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:22:36: error: use of undeclared identifier 'sycl'\n   22 |     sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {\n      |                                    ^\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:22:49: error: initializer list cannot be used on the right hand side of operator '>'\n   22 |     sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {\n      |                                                 ^~~~\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:22:59: error: use of undeclared identifier 'sycl'\n   22 |     sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {\n      |                                                           ^\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:27:31: error: use of undeclared identifier 'sycl'\n   27 |         (e.get_profiling_info<sycl::info::event_profiling::command_end>() -\n      |                               ^\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:27:12: error: missing 'template' keyword prior to dependent template name 'get_profiling_info'\n   27 |         (e.get_profiling_info<sycl::info::event_profiling::command_end>() -\n      |            ^                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:33:5: error: use of undeclared identifier 'sycl'\n   33 |     sycl::free(x, q);\n      |     ^\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:34:5: error: use of undeclared identifier 'sycl'\n   34 |     sycl::free(y, q);\n      |     ^\nruns/20261015T073634012267Z/work/migrated/saxpy.dp.cpp:35:18: error: use of undeclared identifier 'sycl'\n   35 |   } catch (const sycl::exception& ex) {\n      |                  ^\n15 errors generated.\n"}, "output": "runs/20261015T073634012267Z/work/build/candidate", "dpct_include_added": null, "diagnostics": [{"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 15, "column": 5, "severity": "error", "message": "use of undeclared identifier 'sycl'", "flag": null, "snippet": "    sycl::queue q{sycl::property::queue::enable_profiling{}};"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 15, "column": 19, "severity": "error", "message": "use of undeclared identifier 'sycl'", "flag": null, "snippet": "    sycl::queue q{sycl::property::queue::enable_profiling{}};"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 16, "column": 16, "severity": "error", "message": "use of undeclared identifier 'sycl'", "flag": null, "snippet": "    float* x = sycl::malloc_shared<float>(n, q);"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 16, "column": 41, "severity": "error", "message": "expected '(' for function-style cast or type construction", "flag": null, "snippet": "    float* x = sycl::malloc_shared<float>(n, q);"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 17, "column": 16, "severity": "error", "message": "use of undeclared identifier 'sycl'", "flag": null, "snippet": "    float* y = sycl::malloc_shared<float>(n, q);"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 17, "column": 41, "severity": "error", "message": "expected '(' for function-style cast or type construction", "flag": null, "snippet": "    float* y = sycl::malloc_shared<float>(n, q);"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 22, "column": 5, "severity": "error", "message": "use of undeclared identifier 'sycl'", "flag": null, "snippet": "    sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 22, "column": 36, "severity": "error", "message": "use of undeclared identifier 'sycl'", "flag": null, "snippet": "    sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 22, "column": 49, "severity": "error", "message": "initializer list cannot be used on the right hand side of operator '>'", "flag": null, "snippet": "    sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 22, "column": 59, "severity": "error", "message": "use of undeclared identifier 'sycl'", "flag": null, "snippet": "    sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 27, "column": 31, "severity": "error", "message": "use of undeclared identifier 'sycl'", "flag": null, "snippet": "        (e.get_profiling_info<sycl::info::event_profiling::command_end>() -"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 27, "column": 12, "severity": "error", "message": "missing 'template' keyword prior to dependent template name 'get_profiling_info'", "flag": null, "snippet": "        (e.get_profiling_info<sycl::info::event_profiling::command_end>() -"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 33, "column": 5, "severity": "error", "message": "use of undeclared identifier 'sycl'", "flag": null, "snippet": "    sycl::free(x, q);"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 34, "column": 5, "severity": "error", "message": "use of undeclared identifier 'sycl'", "flag": null, "snippet": "    sycl::free(y, q);"}, {"file": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp", "line": 35, "column": 18, "severity": "error", "message": "use of undeclared identifier 'sycl'", "flag": null, "snippet": "  } catch (const sycl::exception& ex) {"}], "counts": {"error": 15, "warning": 0, "note": 0}}, "limitations": ["A successful compile says nothing about numerical correctness; run verify."]}}
{"ts": "2026-10-15T07:36:44.348134+00:00", "type": "model_response", "iteration": 6, "stop_reason": "tool_use", "content": [{"type": "text", "text": "[scripted turn 6]"}, {"type": "tool_use", "id": "toolu_dry_006_0", "name": "write_file", "input": {"path": "migrated/saxpy.dp.cpp", "content": "// Hand-written idiomatic SYCL 2020 port of saxpy.cu (the target end state; no dpct helpers).\n// Usage: saxpy <out.bin> [n=1048576]\n#include <sycl/sycl.hpp>\n\n#include <cstdio>\n#include <cstdlib>\n\nint main(int argc, char** argv) {\n  if (argc < 2) {\n    std::fprintf(stderr, \"usage: %s out.bin [n]\\n\", argv[0]);\n    return 2;\n  }\n  const size_t n = argc > 2 ? std::strtoul(argv[2], nullptr, 10) : (1u << 20);\n  const float a = 2.5f;\n  try {\n    sycl::queue q{sycl::property::queue::enable_profiling{}};\n    float* x = sycl::malloc_shared<float>(n, q);\n    float* y = sycl::malloc_shared<float>(n, q);\n    for (size_t i = 0; i < n; ++i) {\n      x[i] = static_cast<float>(i % 1000) * 0.001f;\n      y[i] = static_cast<float>((i * 7) % 1000) * 0.002f;\n    }\n    sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {\n      y[i] = a * x[i] + y[i];\n    });\n    e.wait_and_throw();\n    const double ms =\n        (e.get_profiling_info<sycl::info::event_profiling::command_end>() -\n         e.get_profiling_info<sycl::info::event_profiling::command_start>()) * 1e-6;\n    std::printf(\"kernel_ms=%f\\n\", ms);\n    FILE* f = std::fopen(argv[1], \"wb\");\n    if (!f || std::fwrite(y, sizeof(float), n, f) != n) return 1;\n    std::fclose(f);\n    sycl::free(x, q);\n    sycl::free(y, q);\n  } catch (const sycl::exception& ex) {\n    std::fprintf(stderr, \"SYCL error: %s\\n\", ex.what());\n    return 1;\n  }\n  return 0;\n}\n"}}, {"type": "tool_use", "id": "toolu_dry_006_1", "name": "compile", "input": {"sources": ["migrated/saxpy.dp.cpp"], "add_dpct_include": false}}, {"type": "tool_use", "id": "toolu_dry_006_2", "name": "scan_helpers", "input": {}}], "usage": {"input_tokens": 1500, "output_tokens": 200, "cache_creation_input_tokens": 0, "cache_read_input_tokens": 0}, "model": "scripted-dry-run"}
{"ts": "2026-10-15T07:36:44.348215+00:00", "type": "tool_call", "iteration": 6, "name": "write_file", "input": {"path": "migrated/saxpy.dp.cpp", "content": "// Hand-written idiomatic SYCL 2020 port of saxpy.cu (the target end state; no dpct helpers).\n// Usage: saxpy <out.bin> [n=1048576]\n#include <sycl/sycl.hpp>\n\n#include <cstdio>\n#include <cstdlib>\n\nint main(int argc, char** argv) {\n  if (argc < 2) {\n    std::fprintf(stderr, \"usage: %s out.bin [n]\\n\", argv[0]);\n    return 2;\n  }\n  const size_t n = argc > 2 ? std::strtoul(argv[2], nullptr, 10) : (1u << 20);\n  const float a = 2.5f;\n  try {\n    sycl::queue q{sycl::property::queue::enable_profiling{}};\n    float* x = sycl::malloc_shared<float>(n, q);\n    float* y = sycl::malloc_shared<float>(n, q);\n    for (size_t i = 0; i < n; ++i) {\n      x[i] = static_cast<float>(i % 1000) * 0.001f;\n      y[i] = static_cast<float>((i * 7) % 1000) * 0.002f;\n    }\n    sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {\n      y[i] = a * x[i] + y[i];\n    });\n    e.wait_and_throw();\n    const double ms =\n        (e.get_profiling_info<sycl::info::event_profiling::command_end>() -\n         e.get_profiling_info<sycl::info::event_profiling::command_start>()) * 1e-6;\n    std::printf(\"kernel_ms=%f\\n\", ms);\n    FILE* f = std::fopen(argv[1], \"wb\");\n    if (!f || std::fwrite(y, sizeof(float), n, f) != n) return 1;\n    std::fclose(f);\n    sycl::free(x, q);\n    sycl::free(y, q);\n  } catch (const sycl::exception& ex) {\n    std::fprintf(stderr, \"SYCL error: %s\\n\", ex.what());\n    return 1;\n  }\n  return 0;\n}\n"}}
{"ts": "2026-10-15T07:36:44.349045+00:00", "type": "tool_result", "iteration": 6, "name": "write_file", "input": {"path": "migrated/saxpy.dp.cpp", "content": "// Hand-written idiomatic SYCL 2020 port of saxpy.cu (the target end state; no dpct helpers).\n// Usage: saxpy <out.bin> [n=1048576]\n#include <sycl/sycl.hpp>\n\n#include <cstdio>\n#include <cstdlib>\n\nint main(int argc, char** argv) {\n  if (argc < 2) {\n    std::fprintf(stderr, \"usage: %s out.bin [n]\\n\", argv[0]);\n    return 2;\n  }\n  const size_t n = argc > 2 ? std::strtoul(argv[2], nullptr, 10) : (1u << 20);\n  const float a = 2.5f;\n  try {\n    sycl::queue q{sycl::property::queue::enable_profiling{}};\n    float* x = sycl::malloc_shared<float>(n, q);\n    float* y = sycl::malloc_shared<float>(n, q);\n    for (size_t i = 0; i < n; ++i) {\n      x[i] = static_cast<float>(i % 1000) * 0.001f;\n      y[i] = static_cast<float>((i * 7) % 1000) * 0.002f;\n    }\n    sycl::event e = q.parallel_for(sycl::range<1>{n}, [=](sycl::id<1> i) {\n      y[i] = a * x[i] + y[i];\n    });\n    e.wait_and_throw();\n    const double ms =\n        (e.get_profiling_info<sycl::info::event_profiling::command_end>() -\n         e.get_profiling_info<sycl::info::event_profiling::command_start>()) * 1e-6;\n    std::printf(\"kernel_ms=%f\\n\", ms);\n    FILE* f = std::fopen(argv[1], \"wb\");\n    if (!f || std::fwrite(y, sizeof(float), n, f) != n) return 1;\n    std::fclose(f);\n    sycl::free(x, q);\n    sycl::free(y, q);\n  } catch (const sycl::exception& ex) {\n    std::fprintf(stderr, \"SYCL error: %s\\n\", ex.what());\n    return 1;\n  }\n  return 0;\n}\n"}, "source_hash": "68a6fa0b2b2d3333", "result": {"tool": "write_file", "status": "ok", "summary": "wrote migrated/saxpy.dp.cpp (1411 chars)", "evidence": {"path": "runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp"}, "limitations": []}}
{"ts": "2026-10-15T07:36:44.349121+00:00", "type": "tool_call", "iteration": 6, "name": "compile", "input": {"sources": ["migrated/saxpy.dp.cpp"], "add_dpct_include": false}}
{"ts": "2026-10-15T07:36:50.270006+00:00", "type": "tool_result", "iteration": 6, "name": "compile", "input": {"sources": ["migrated/saxpy.dp.cpp"], "add_dpct_include": false}, "source_hash": "68a6fa0b2b2d3333", "result": {"tool": "compile", "status": "ok", "summary": "compiled 1 source(s) -> runs/20261015T073634012267Z/work/build/candidate (0 warning(s))", "evidence": {"run": {"command": "/opt/dpcpp/bin/icpx -fsycl -O2 runs/20261015T073634012267Z/work/migrated/saxpy.dp.cpp -o runs/20261015T073634012267Z/work/build/candidate", "returncode": 0, "duration_s": 5.919976, "stdout": "", "stderr": ""}, "output": "runs/20261015T073634012267Z/work/build/candidate", "dpct_include_added": null, "diagnostics": [], "counts": {"error": 0, "warning": 0, "note": 0}}, "limitations": ["A successful compile says nothing about numerical correctness; run verify."]}}
{"ts": "2026-10-15T07:36:50.270159+00:00", "type": "tool_call", "iteration": 6, "name": "scan_helpers", "input": {}}
{"ts": "2026-10-15T07:36:50.271597+00:00", "type": "tool_result", "iteration": 6, "name": "scan_helpers", "input": {}, "source_hash": "68a6fa0b2b2d3333", "result": {"tool": "scan_helpers", "status": "ok", "summary": "no dpct helpers in 1 file(s)", "evidence": {"path": "runs/20261015T073634012267Z/work", "files_scanned": 1, "total": 0, "by_category": {}, "by_symbol": {}, "by_file": {}, "occurrences": [], "occurrences_truncated": 0, "suggestions": {}, "unresolved_dpct_comments": [], "advisories": []}, "limitations": ["Static text scan: macros that expand to dpct:: calls, or helpers reached through user-defined wrappers, are not detected.", "Zero helpers means the code no longer depends on dpct headers; it does not prove the code is correct or fast. Run compile + verify + benchmark."]}}
{"ts": "2026-10-15T07:36:50.272112+00:00", "type": "model_response", "iteration": 7, "stop_reason": "tool_use", "content": [{"type": "text", "text": "[scripted turn 7]"}, {"type": "tool_use", "id": "toolu_dry_007_0", "name": "verify", "input": {}}], "usage": {"input_tokens": 1500, "output_tokens": 200, "cache_creation_input_tokens": 0, "cache_read_input_tokens": 0}, "model": "scripted-dry-run"}
{"ts": "2026-10-15T07:36:50.272164+00:00", "type": "tool_call", "iteration": 7, "name": "verify", "input": {}}
{"ts": "2026-10-15T07:36:51.126789+00:00", "type": "best_snapshot", "iteration": 7, "source_hash": "68a6fa0b2b2d3333", "helpers": 0, "path": "runs/20261015T073634012267Z/best", "verify_summary": "PASS: 1/1 case(s) match (worst max abs err 4.77e-07, atol 1e-06)"}
{"ts": "2026-10-15T07:36:51.126965+00:00", "type": "tool_result", "iteration": 7, "name": "verify", "input": {}, "source_hash": "68a6fa0b2b2d3333", "result": {"tool": "verify", "status": "ok", "summary": "PASS: 1/1 case(s) match (worst max abs err 4.77e-07, atol 1e-06)", "evidence": {"mode": "array", "cases": [{"input": null, "reference": {"command": "build/reference runs/20261015T073634012267Z/work/verify_out/case0_reference.out", "returncode": 0, "duration_s": 0.020513, "stdout": "", "stderr": "", "cwd": "runs/20261015T073634012267Z/work", "output_file": "runs/20261015T073634012267Z/work/verify_out/case0_reference.out"}, "candidate": {"command": "build/candidate runs/20261015T073634012267Z/work/verify_out/case0_candidate.out", "returncode": 0, "duration_s": 0.286137, "stdout": "kernel_ms=0.549684\n", "stderr": "", "cwd": "runs/20261015T073634012267Z/work", "output_file": "runs/20261015T073634012267Z/work/verify_out/case0_candidate.out"}, "reference_format": "f32", "candidate_format": "f32", "mode": "array", "stats": {"n_reference": 1048576, "n_candidate": 1048576, "atol": 1e-06, "rtol": 0.0, "max_ulp_allowed": null, "passed": true, "max_abs_err": 4.76837158203125e-07, "rms_err": 9.132723682817551e-08, "mean_abs_err": 3.60726772896669e-08, "max_rel_err": 1.1857194791656045e-07, "max_ulp_f32": 1, "median_ulp_f32": 0.0, "exact_matches": 853539, "mismatches": 0, "nan_mismatches": 0, "reference_range": [0.0, 4.4835004806518555], "first_mismatches": []}, "passed": true}], "work_dir": "runs/20261015T073634012267Z/work/verify_out", "passed_cases": 1, "total_cases": 1, "worst_max_abs_err": 4.76837158203125e-07}, "limitations": ["Equivalence is shown only for the inputs tested; other inputs/sizes may behave differently."]}}
{"ts": "2026-10-15T07:36:51.128461+00:00", "type": "tool_call", "iteration": 7, "name": "benchmark", "input": {"runs": 5}, "by": "harness"}
{"ts": "2026-10-15T07:36:52.504744+00:00", "type": "tool_result", "iteration": 7, "name": "benchmark", "input": {"runs": 5, "by": "harness"}, "source_hash": "68a6fa0b2b2d3333", "result": {"tool": "benchmark", "status": "ok", "summary": "5 run(s) each; Intel(R) Xeon(R) Processor @ 2.80GHz: median 217.41 ms, p95 239.39 ms", "evidence": {"command": "build/candidate runs/20261015T073634012267Z/work/verify_out/bench_out", "runs": 5, "warmup": 1, "device_discovery": {"sycl_ls": {"command": "/opt/dpcpp/bin/sycl-ls", "returncode": 0, "duration_s": 0.033003, "stdout": "[opencl:cpu][opencl:0] Intel(R) OpenCL, Intel(R) Xeon(R) Processor @ 2.80GHz OpenCL 3.0 (Build 0) [2026.21.7.0.24_160000]\n", "stderr": ""}}, "results": [{"selector": "opencl:0", "device": {"backend": "opencl", "device_type": "cpu", "index": 0, "platform": "Intel(R) OpenCL", "name": "Intel(R) Xeon(R) Processor @ 2.80GHz", "description": "Intel(R) OpenCL, Intel(R) Xeon(R) Processor @ 2.80GHz OpenCL 3.0 (Build 0) [2026.21.7.0.24_160000]", "selector": "opencl:0"}, "status": "ok", "wall_time_s": {"n": 5, "min": 0.19465756199997486, "median": 0.21740525099994557, "p95": 0.23939102740000634, "max": 0.23983997100003762, "mean": 0.2184931192000022, "stdev": 0.02019244822486981}, "samples_s": [0.23984, 0.217405, 0.237595, 0.202968, 0.194658]}]}, "limitations": ["Wall-clock time of the whole process (includes start-up, JIT compilation of SYCL kernels on first use, I/O). Use report_regex for in-program kernel timings.", "Device selection uses ONEAPI_DEVICE_SELECTOR; it only takes effect if the program uses a default/selector-based sycl::queue."]}}
{"ts": "2026-10-15T07:36:52.504895+00:00", "type": "stop", "stop_reason": "success", "stop_detail": "verify passed and zero dpct helpers on the current compiled sources", "iterations": 7, "usage": {"input_tokens": 10500, "output_tokens": 1400, "cache_creation_input_tokens": 0, "cache_read_input_tokens": 0}, "cost_usd": 0.0, "best": {"iteration": 7, "source_hash": "68a6fa0b2b2d3333", "helpers": 0, "path": "runs/20261015T073634012267Z/best", "verify_summary": "PASS: 1/1 case(s) match (worst max abs err 4.77e-07, atol 1e-06)"}, "run_dir": "runs/20261015T073634012267Z", "trace": "runs/20261015T073634012267Z/trace.jsonl", "report": "runs/20261015T073634012267Z/report.md", "model": "scripted-dry-run"}