{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:TF2ZUDV2FGEUDMWOYTXY4YKSZ6","short_pith_number":"pith:TF2ZUDV2","canonical_record":{"source":{"id":"1907.02894","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PF","submitted_at":"2019-07-05T15:30:04Z","cross_cats_sorted":["cs.DC"],"title_canon_sha256":"df69245efe9afea98cb10cbabde50acc8931275dc4fcf45b67e0a9d093a72fa0","abstract_canon_sha256":"9dac9ae9806a2ead806c128d404776664063f7a2851624811a138f5ce13fb0d3"},"schema_version":"1.0"},"canonical_sha256":"99759a0eba298941b2cec4ef8e6152cfa9a757a1da62cff601d004c7e574a181","source":{"kind":"arxiv","id":"1907.02894","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.02894","created_at":"2026-05-17T23:41:22Z"},{"alias_kind":"arxiv_version","alias_value":"1907.02894v1","created_at":"2026-05-17T23:41:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.02894","created_at":"2026-05-17T23:41:22Z"},{"alias_kind":"pith_short_12","alias_value":"TF2ZUDV2FGEU","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"TF2ZUDV2FGEUDMWO","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"TF2ZUDV2","created_at":"2026-05-18T12:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:TF2ZUDV2FGEUDMWOYTXY4YKSZ6","target":"record","payload":{"canonical_record":{"source":{"id":"1907.02894","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PF","submitted_at":"2019-07-05T15:30:04Z","cross_cats_sorted":["cs.DC"],"title_canon_sha256":"df69245efe9afea98cb10cbabde50acc8931275dc4fcf45b67e0a9d093a72fa0","abstract_canon_sha256":"9dac9ae9806a2ead806c128d404776664063f7a2851624811a138f5ce13fb0d3"},"schema_version":"1.0"},"canonical_sha256":"99759a0eba298941b2cec4ef8e6152cfa9a757a1da62cff601d004c7e574a181","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:22.709739Z","signature_b64":"DRy8UAfW1A5YkAGgxhjyZBTt5sTaxlUAooCDmlGl/dBgyDl5e+M2IQlQAwzOoIWt7ozE0ReCEQ1CbltsYsm8Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"99759a0eba298941b2cec4ef8e6152cfa9a757a1da62cff601d004c7e574a181","last_reissued_at":"2026-05-17T23:41:22.709149Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:22.709149Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.02894","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:41:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gLPjCDbXfBbWso9rMsG4NnNIjX52Qdk1etZhGmJPimMsksINvd7l81z8LlHbxcePjo5lglMUvG8bKU6WIniECA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:24:02.713285Z"},"content_sha256":"e64912c92fb866ccdddf8fc5adc77750a66ec8b07e4fd2135a84aa7c7e229a45","schema_version":"1.0","event_id":"sha256:e64912c92fb866ccdddf8fc5adc77750a66ec8b07e4fd2135a84aa7c7e229a45"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:TF2ZUDV2FGEUDMWOYTXY4YKSZ6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"RegDem: Increasing GPU Performance via Shared Memory Register Spilling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DC"],"primary_cat":"cs.PF","authors_text":"Amit Sabne, Putt Sakdhnagool, Rudolf Eigenmann","submitted_at":"2019-07-05T15:30:04Z","abstract_excerpt":"GPU utilization, measured as occupancy, is limited by the parallel threads' combined usage of on-chip resources, such as registers and the programmer-managed shared memory. Higher resource demand means lower effective parallel thread count, and therefore lower program performance. Our investigation found that registers are often the occupancy limiters.\n  The de-facto nvcc compiler-based approach spills excessive registers to the off-chip memory, ignoring the shared memory and leaving the on-chip resources underutilized. To mitigate the register demand, this paper presents a binary translation "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.02894","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:41:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7P3A8hYlr7Zz6BuRcV8UOUkpsYSG8ZZja/NwmTHiHVoyaoknIo6aqRUt56ol/TJcxaWVXO1pTyO51bpmq9NVBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:24:02.713964Z"},"content_sha256":"dc6c53029e911dcb1b4b97454806243195d927a559f27eb83ab3bde2177d6696","schema_version":"1.0","event_id":"sha256:dc6c53029e911dcb1b4b97454806243195d927a559f27eb83ab3bde2177d6696"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TF2ZUDV2FGEUDMWOYTXY4YKSZ6/bundle.json","state_url":"https://pith.science/pith/TF2ZUDV2FGEUDMWOYTXY4YKSZ6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TF2ZUDV2FGEUDMWOYTXY4YKSZ6/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T07:24:02Z","links":{"resolver":"https://pith.science/pith/TF2ZUDV2FGEUDMWOYTXY4YKSZ6","bundle":"https://pith.science/pith/TF2ZUDV2FGEUDMWOYTXY4YKSZ6/bundle.json","state":"https://pith.science/pith/TF2ZUDV2FGEUDMWOYTXY4YKSZ6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TF2ZUDV2FGEUDMWOYTXY4YKSZ6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:TF2ZUDV2FGEUDMWOYTXY4YKSZ6","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"9dac9ae9806a2ead806c128d404776664063f7a2851624811a138f5ce13fb0d3","cross_cats_sorted":["cs.DC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PF","submitted_at":"2019-07-05T15:30:04Z","title_canon_sha256":"df69245efe9afea98cb10cbabde50acc8931275dc4fcf45b67e0a9d093a72fa0"},"schema_version":"1.0","source":{"id":"1907.02894","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.02894","created_at":"2026-05-17T23:41:22Z"},{"alias_kind":"arxiv_version","alias_value":"1907.02894v1","created_at":"2026-05-17T23:41:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.02894","created_at":"2026-05-17T23:41:22Z"},{"alias_kind":"pith_short_12","alias_value":"TF2ZUDV2FGEU","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"TF2ZUDV2FGEUDMWO","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"TF2ZUDV2","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:dc6c53029e911dcb1b4b97454806243195d927a559f27eb83ab3bde2177d6696","target":"graph","created_at":"2026-05-17T23:41:22Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"GPU utilization, measured as occupancy, is limited by the parallel threads' combined usage of on-chip resources, such as registers and the programmer-managed shared memory. Higher resource demand means lower effective parallel thread count, and therefore lower program performance. Our investigation found that registers are often the occupancy limiters.\n  The de-facto nvcc compiler-based approach spills excessive registers to the off-chip memory, ignoring the shared memory and leaving the on-chip resources underutilized. To mitigate the register demand, this paper presents a binary translation ","authors_text":"Amit Sabne, Putt Sakdhnagool, Rudolf Eigenmann","cross_cats":["cs.DC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PF","submitted_at":"2019-07-05T15:30:04Z","title":"RegDem: Increasing GPU Performance via Shared Memory Register Spilling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.02894","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:e64912c92fb866ccdddf8fc5adc77750a66ec8b07e4fd2135a84aa7c7e229a45","target":"record","created_at":"2026-05-17T23:41:22Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"9dac9ae9806a2ead806c128d404776664063f7a2851624811a138f5ce13fb0d3","cross_cats_sorted":["cs.DC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PF","submitted_at":"2019-07-05T15:30:04Z","title_canon_sha256":"df69245efe9afea98cb10cbabde50acc8931275dc4fcf45b67e0a9d093a72fa0"},"schema_version":"1.0","source":{"id":"1907.02894","kind":"arxiv","version":1}},"canonical_sha256":"99759a0eba298941b2cec4ef8e6152cfa9a757a1da62cff601d004c7e574a181","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99759a0eba298941b2cec4ef8e6152cfa9a757a1da62cff601d004c7e574a181","first_computed_at":"2026-05-17T23:41:22.709149Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:22.709149Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DRy8UAfW1A5YkAGgxhjyZBTt5sTaxlUAooCDmlGl/dBgyDl5e+M2IQlQAwzOoIWt7ozE0ReCEQ1CbltsYsm8Cw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:22.709739Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.02894","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e64912c92fb866ccdddf8fc5adc77750a66ec8b07e4fd2135a84aa7c7e229a45","sha256:dc6c53029e911dcb1b4b97454806243195d927a559f27eb83ab3bde2177d6696"],"state_sha256":"0e388af97a4afaf6ee1d9dce773e14af388e9ec41f1cb38bb3b8536d0d3a6034"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8akzAJIz4do6KULFVojf/6AmvycLVlmdTsyKzAAzVHYMv2QRM7KC8IB4umK5Gdtvn1A8B/cByAYHnSiBQdaOBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T07:24:02.717688Z","bundle_sha256":"59a1f2406aa3fcb242223780ae9a40010ad7107408b83a0061f5942798a22b4c"}}