Contributors · deepseek-ai/DeepEP

Zoomable circles (number of contributors per file): 30 days | 90 days | 6 months | past year | all time

Files with only one contributor are shown as grey.

Contributors

Recent Contributors (10)

Committed in past 6 months (a rookie = the first commit in past year)

Past 30 days (2):

chenggangz@deepseek.com

tianr22@deepseek.com

Past 31 to 90 days (2):

sy.zhou@deepseek.com

68212651+evadlee@users.noreply.github.com

Past 91 to 180 days (6):

renzhenghang@hotmail.com

853602630@qq.com

1583143678@qq.com

140381666+danieldanyang@users.noreply.github.com

15359563+hirschsn@users.noreply.github.com

359521840@qq.com

Historical Contributors (45)

Last contributors more than 6 months ago

5236035+fzyzcjy@users.noreply.github.com

wulala979@outlook.com

sethh@nvidia.com

sy.zhou@high-flyer.cn

fakangwang@gmail.com

youkaichao@gmail.com

140354528+zhiyihu1999@users.noreply.github.com

fujianhao1997@qq.com

94977922+zheanxu@users.noreply.github.com

guangguan.wang@linux.alibaba.com

moningchen@tencent.com

yuantailing@gmail.com

37924463+polarstormx@users.noreply.github.com

wzc.wuzhicheng@linux.alibaba.com

dima.v.dzhulgakov@gmail.com

yutong.wu@amd.com

166747556+seth-howell@users.noreply.github.com

crystalinecohomology@gmail.com

salmanmkc@github.com

ziming.mao@berkeley.edu

dowang@nvidia.com

219273404+yifeizhang-c@users.noreply.github.com

varunsundar08@gmail.com

jammyc97@gmail.com

58495634+tianchongchong@users.noreply.github.com

52529258+thunderbrook@users.noreply.github.com

windreamer@gmail.com

pandaleefree@gmail.com

18275976+yilin-void@users.noreply.github.com

liuhe@infrawave.com

1078936759@qq.com

46867401+ruizhang1230@users.noreply.github.com

shifangx@nvidia.com

ch271828n@outlook.com

caoying01@baidu.com

140554423+guyueh1@users.noreply.github.com

sleepcoo@gmail.com

vico24826@gmail.com

975761915@qq.com

nico_ying@163.com

linhaomails@gmail.com

fujianhao.fjh@antgroup.com

mf1833064@smail.nju.edu.cn

sy.zhou@hotmail.com

haswelliris@live.com

Contributors Matrix (Per Month)

					-	2	2	2	1	6	1	-	1	1	5	2	3	7	11	14	10	8	9	6	4	-	-	-	-
commits					-	3	2	3	1	6	1	-	1	1	5	2	9	20	15	56	50	14	24	34	8	-	-	-	-
line churn					-	+16K -22K	+6 -0	+772 -446	+2 -0	+669 -145	+23K -12K	-	+3 -0	+25 -3	+13 -2	+247 -23	+3.2K -1.3K	+680 -246	+491 -171	+1.9K -1.3K	+1.7K -979	+236 -115	+655 -965	+626 -576	+35 -24	-	-	-	-
	30d	3m	1y	all time
Chenggang Zhao <chenggangz@deepseek.com>	2 +16K / -22K	4 +16K / -22K	7 +40K / -34K	92 +42K / -36K	-		-		-	-		-	-	-	-	-										-	-	-	-
Rui Tian <tianr22@deepseek.com>	1 +9 / -2	1 +9 / -2	1 +9 / -2	1 +9 / -2	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Shangyan Zhou <sy.zhou@deepseek.com>	-	1 +4 / -0	9 +4.5K / -1.8K	46 +5.4K / -2.3K	-	-			-		-	-	-	-	-	-						-	-	-	-	-	-	-	-
Yanfu <68212651+evadlee@users.noreply.github.com>	-	1 +2 / -0	1 +2 / -0	1 +2 / -0	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Zhenghang Ren <renzhenghang@hotmail.com>	-	-	1 +2 / -0	1 +2 / -0	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Ray Wang <853602630@qq.com>	-	-	1 +10 / -1	1 +10 / -1	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
MayDomine <1583143678@qq.com>	-	-	1 +36 / -9	1 +36 / -9	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Danyang Chen <140381666+danieldanyang@users.noreply.github.com>	-	-	1 +4 / -1	1 +4 / -1	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Steffen Hirschmann <15359563+hirschsn@users.noreply.github.com>	-	-	1 +1 / -1	1 +1 / -1	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ZZK <359521840@qq.com>	-	-	1 +2 / -2	1 +2 / -2	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Wu, Yutong <yutong.wu@amd.com>	-	-	1 +3 / -0	1 +3 / -0	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
seth-howell <166747556+seth-howell@users.noreply.github.com>	-	-	1 +25 / -3	1 +25 / -3	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ゆり <crystalinecohomology@gmail.com>	-	-	1 +1 / -1	1 +1 / -1	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-
Salman Chishti <salmanmkc@github.com>	-	-	1 +1 / -1	1 +1 / -1	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-
Ziming Mao <ziming.mao@berkeley.edu>	-	-	1 +1 / -0	1 +1 / -0	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-
sky <fakangwang@gmail.com>	-	-	1 +5 / -0	5 +161 / -6	-	-	-	-	-	-	-	-	-	-		-	-	-			-		-	-	-	-	-	-	-
dongwang4096 <dowang@nvidia.com>	-	-	1 +5 / -0	1 +5 / -0	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-
yifeizhang-c <219273404+yifeizhang-c@users.noreply.github.com>	-	-	1 +62 / -6	1 +62 / -6	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-
fzyzcjy <5236035+fzyzcjy@users.noreply.github.com>	-	-	1 +185 / -17	15 +281 / -47	-	-	-	-	-	-	-	-	-	-	-		-								-	-	-	-	-
Varun Sundar Rabindranath <varunsundar08@gmail.com>	-	-	1 +2 / -0	1 +2 / -0	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-
jammy-_- <jammyc97@gmail.com>	-	-	-	1 +340 / -22	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-
Tailing Yuan <yuantailing@gmail.com>	-	-	-	2 +99 / -59	-	-	-	-	-	-	-	-	-	-	-	-	-			-	-	-	-	-	-	-	-	-	-
Yizhi Wang <37924463+polarstormx@users.noreply.github.com>	-	-	-	2 +4 / -2	-	-	-	-	-	-	-	-	-	-	-	-	-			-	-	-	-	-	-	-	-	-	-
Chongchong Tian <58495634+tianchongchong@users.noreply.github.com>	-	-	-	1 +1 / -3	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-
Zhiyi Hu <140354528+zhiyihu1999@users.noreply.github.com>	-	-	-	3 +6 / -2	-	-	-	-	-	-	-	-	-	-	-	-	-	-			-	-	-	-	-	-	-	-	-
Thunderbrook <52529258+thunderbrook@users.noreply.github.com>	-	-	-	1 +1 / -1	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-
AlphaBaby <fujianhao1997@qq.com>	-	-	-	3 +6 / -4	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-		-	-	-	-	-	-	-	-
Zhean Xu <94977922+zheanxu@users.noreply.github.com>	-	-	-	3 +568 / -180	-	-	-	-	-	-	-	-	-	-	-	-	-	-			-	-	-	-	-	-	-	-	-
windreamer <windreamer@gmail.com>	-	-	-	1 +5 / -4	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-
Jee Jee Li <pandaleefree@gmail.com>	-	-	-	1 +1 / -0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-
Void <18275976+yilin-void@users.noreply.github.com>	-	-	-	1 +9 / -8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-
Guangguan Wang <guangguan.wang@linux.alibaba.com>	-	-	-	3 +27 / -4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-
Seth Howell <sethh@nvidia.com>	-	-	-	9 +549 / -538	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-
root <liuhe@infrawave.com>	-	-	-	1 +16 / -23	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-
liuhe <1078936759@qq.com>	-	-	-	1 +31 / -12	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-
youkaichao <youkaichao@gmail.com>	-	-	-	5 +151 / -98	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-			-	-	-		-	-	-	-
ruizhang1230 <46867401+ruizhang1230@users.noreply.github.com>	-	-	-	1 +5 / -4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-
Shangyan Zhou <wulala979@outlook.com>	-	-	-	13 +225 / -141	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-				-		-	-	-	-
Zhicheng Wu <wzc.wuzhicheng@linux.alibaba.com>	-	-	-	2 +5 / -3	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-
Shifang Xu <shifangx@nvidia.com>	-	-	-	1 +203 / -63	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-
fzyzcjy <ch271828n@outlook.com>	-	-	-	1 +4 / -1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-
Shangyan Zhou <sy.zhou@high-flyer.cn>	-	-	-	9 +177 / -580	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-			-	-	-	-	-
cywork121 <caoying01@baidu.com>	-	-	-	1 +29 / -0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-
guyueh1 <140554423+guyueh1@users.noreply.github.com>	-	-	-	1 +1 / -0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-
sleepcoo <sleepcoo@gmail.com>	-	-	-	1 +1 / -0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-
Vico Chu <vico24826@gmail.com>	-	-	-	1 +14 / -0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-
moningchen <moningchen@tencent.com>	-	-	-	3 +420 / -380	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-
李金梁 <975761915@qq.com>	-	-	-	1 +2 / -1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-
GreatHato <nico_ying@163.com>	-	-	-	1 +1 / -1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-
Hao Lin <linhaomails@gmail.com>	-	-	-	1 +2 / -2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-
fujianhao.fjh <fujianhao.fjh@antgroup.com>	-	-	-	1 +20 / -20	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-
songhexiang <mf1833064@smail.nju.edu.cn>	-	-	-	1 +1 / -1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-
Dmytro Dzhulgakov <dima.v.dzhulgakov@gmail.com>	-	-	-	2 +18 / -7	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-
Shangyan Zhou <sy.zhou@hotmail.com>	-	-	-	1 +40 / -73	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-
haswelliris <haswelliris@live.com>	-	-	-	1 +13 / -10	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-

Bots Matrix (Per Month)

-

commits

-

30d

3m

1y

all time

2 contributors (3 commits):

#	Contributor	First Commit	Latest Commit	Commits Count	Line Churn	File Updates (per extension)
1.	Chenggang Zhao <chenggangz@deepseek.com>	2025-02-25	2026-09-30	2 (66%)	+16K / -22K	cuh (61), hpp (52), py (42), cu (8), txt (6)
2.	Rui Tian <tianr22@deepseek.com>	2026-09-16	2026-09-16	1 (33%)	+9 / -2	cuh (1)

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 30 days.

Contributor Dependencies via Shared Files

contributor dependencies 2D graph

The number on lines shows the number of same files that both persons changed in past 30 days.

flowchart TB
    n0["chenggangz@deepseek.com"]
    n1["tianr22@deepseek.com"]
    n0 ---|"1"| n1
    classDef default fill:#808080,stroke:#ffffff,color:#000000;
    classDef highlighted fill:#00b2ee,stroke:#ffffff,color:#000000;
    linkStyle 0 stroke:#00688b5E,stroke-width:1px

Download: Mermaid (.mmd) (open online Mermaid editor)

- open 2D force graph
- open 3D force graph
- open 2D force graph (including all files)
- open 2D force graph (including only shared files)
- open 3D force graph (including all files)
- open 3D force graph (including only shared files)

	Contributor 1	Contributor 2	# shared files
1.	Chenggang Zhao <chenggangz@deepseek.com>	Rui Tian <tianr22@deepseek.com>	1 shared file deep_ep/include/deep_ep/impls/engram_fetch.cuh

Most Connected Contributors

	Contributor	# connections	# commits
1.	Chenggang Zhao <chenggangz@deepseek.com>	1	2
2.	Rui Tian <tianr22@deepseek.com>	1	1

C-median: 1.0

A half of the contributors has more than 1.0 connections, and a half has less than this number.

C-mean: 1.0

An average number of connections a contributor has with other contributors.

C-index: 1.0

There are 1.0 contributors with 1.0 or more connections.

4 contributors (7 commits):

#	Contributor	First Commit	Latest Commit	Commits Count	Line Churn	File Updates (per extension)
1.	Chenggang Zhao <chenggangz@deepseek.com>	2025-02-25	2026-09-30	4 (57%)	+16K / -22K	cuh (64), hpp (59), py (42), cu (9), txt (6)
2.	Shangyan Zhou <sy.zhou@deepseek.com>	2025-06-13	2026-08-04	1 (14%)	+4 / -0	cuh (1)
3.	Rui Tian <tianr22@deepseek.com>	2026-09-16	2026-09-16	1 (14%)	+9 / -2	cuh (1)
4.	Yanfu <68212651+evadlee@users.noreply.github.com>	2026-08-04	2026-08-04	1 (14%)	+2 / -0	cuh (1)

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 90 days.

Contributor Dependencies via Shared Files

contributor dependencies 2D graph

The number on lines shows the number of same files that both persons changed in past 90 days.

flowchart TB
    n0["chenggangz@deepseek.com"]
    n1["sy.zhou@deepseek.com"]
    n2["68212651+evadlee@users.noreply.github.com"]
    n3["tianr22@deepseek.com"]
    n0 ---|"1"| n1
    n0 ---|"1"| n2
    n1 ---|"1"| n2
    n0 ---|"1"| n3
    classDef default fill:#808080,stroke:#ffffff,color:#000000;
    classDef highlighted fill:#00b2ee,stroke:#ffffff,color:#000000;
    linkStyle 0 stroke:#00688b5E,stroke-width:1px
    linkStyle 1 stroke:#00688b5E,stroke-width:1px
    linkStyle 2 stroke:#00688b5E,stroke-width:1px
    linkStyle 3 stroke:#00688b5E,stroke-width:1px

Download: Mermaid (.mmd) (open online Mermaid editor)

- open 2D force graph
- open 3D force graph
- open 2D force graph (including all files)
- open 2D force graph (including only shared files)
- open 3D force graph (including all files)
- open 3D force graph (including only shared files)

	Contributor 1	Contributor 2	# shared files
1.	Chenggang Zhao <chenggangz@deepseek.com>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file deep_ep/include/deep_ep/common/comm.cuh
2.	Chenggang Zhao <chenggangz@deepseek.com>	Yanfu <68212651+evadlee@users.noreply.github.com>	1 shared file deep_ep/include/deep_ep/common/comm.cuh
3.	Shangyan Zhou <sy.zhou@deepseek.com>	Yanfu <68212651+evadlee@users.noreply.github.com>	1 shared file deep_ep/include/deep_ep/common/comm.cuh
4.	Chenggang Zhao <chenggangz@deepseek.com>	Rui Tian <tianr22@deepseek.com>	1 shared file deep_ep/include/deep_ep/impls/engram_fetch.cuh

Most Connected Contributors

	Contributor	# connections	# commits
1.	Chenggang Zhao <chenggangz@deepseek.com>	3	4
2.	Shangyan Zhou <sy.zhou@deepseek.com>	2	1
3.	Yanfu <68212651+evadlee@users.noreply.github.com>	2	1
4.	Rui Tian <tianr22@deepseek.com>	1	1

C-median: 2.0

A half of the contributors has more than 2.0 connections, and a half has less than this number.

C-mean: 2.0

An average number of connections a contributor has with other contributors.

C-index: 2.0

There are 2.0 contributors with 2.0 or more connections.

10 contributors (16 commits):

#	Contributor	First Commit	Latest Commit	Commits Count	Line Churn
1.	Chenggang Zhao <chenggangz@deepseek.com>	2025-02-25	2026-09-30	5 (31%)	+40K / -34K
2.	Shangyan Zhou <sy.zhou@deepseek.com>	2025-06-13	2026-08-04	3 (18%)	+1.3K / -545
3.	Rui Tian <tianr22@deepseek.com>	2026-09-16	2026-09-16	1 (6%)	+9 / -2
4.	Yanfu <68212651+evadlee@users.noreply.github.com>	2026-08-04	2026-08-04	1 (6%)	+2 / -0
5.	Zhenghang Ren <renzhenghang@hotmail.com>	2026-06-15	2026-06-15	1 (6%)	+2 / -0
6.	Ray Wang <853602630@qq.com>	2026-05-26	2026-05-26	1 (6%)	+10 / -1
7.	MayDomine <1583143678@qq.com>	2026-05-22	2026-05-22	1 (6%)	+36 / -9
8.	Danyang Chen <140381666+danieldanyang@users.noreply.github.com>	2026-05-22	2026-05-22	1 (6%)	+4 / -1
9.	Steffen Hirschmann <15359563+hirschsn@users.noreply.github.com>	2026-05-22	2026-05-22	1 (6%)	+1 / -1
10.	ZZK <359521840@qq.com>	2026-05-22	2026-05-22	1 (6%)	+2 / -2

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 180 days.

Contributor Dependencies via Shared Files

contributor dependencies 2D graph

The number on lines shows the number of same files that both persons changed in past 180 days.

flowchart TB
    n0["chenggangz@deepseek.com"]
    n1["sy.zhou@deepseek.com"]
    n2["853602630@qq.com"]
    n3["359521840@qq.com"]
    n4["1583143678@qq.com"]
    n5["68212651+evadlee@users.noreply.github.com"]
    n6["140381666+danieldanyang@users.noreply.github.com"]
    n7["renzhenghang@hotmail.com"]
    n8["15359563+hirschsn@users.noreply.github.com"]
    n9["tianr22@deepseek.com"]
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- open 2D force graph
- open 3D force graph
- open 2D force graph (including all files)
- open 2D force graph (including only shared files)
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	Contributor 1	Contributor 2	# shared files
1.	Chenggang Zhao <chenggangz@deepseek.com>	Shangyan Zhou <sy.zhou@deepseek.com>	33 shared files deep_ep/include/deep_ep/impls/dispatch.cuh deep_ep/include/deep_ep/impls/hybrid_dispatch.cuh deep_ep/include/deep_ep/impls/engram_fetch_wait.cuh tests/elastic/test_agrs.py deep_ep/include/deep_ep/impls/combine_utils.cuh deep_ep/include/deep_ep/impls/barrier.cuh deep_ep/include/deep_ep/impls/dispatch_copy_epilogue.cuh csrc/kernels/elastic/barrier.hpp deep_ep/include/deep_ep/impls/pp_send_recv.cuh deep_ep/buffers/elastic.py csrc/elastic/buffer.hpp deep_ep/include/deep_ep/impls/dispatch_deterministic_prologue.cuh deep_ep/utils/event.py csrc/kernels/elastic/dispatch.hpp deep_ep/include/deep_ep/common/comm.cuh csrc/indexing/main.cu deep_ep/include/deep_ep/impls/hybrid_combine.cuh tests/elastic/test_engram.py csrc/utils/lazy_driver.hpp deep_ep/include/deep_ep/common/layout.cuh csrc/kernels/backend/nccl.cu deep_ep/include/deep_ep/common/handle.cuh csrc/jit/handle.hpp csrc/kernels/backend/api.cuh tests/elastic/test_ep.py csrc/kernels/elastic/engram.hpp deep_ep/include/deep_ep/impls/combine.cuh csrc/kernels/backend/symmetric.hpp deep_ep/utils/comm.py deep_ep/__init__.py deep_ep/include/deep_ep/common/ptx.cuh deep_ep/include/deep_ep/common/compiled.cuh deep_ep/include/deep_ep/impls/engram_fetch.cuh
2.	Chenggang Zhao <chenggangz@deepseek.com>	Ray Wang <853602630@qq.com>	2 shared files csrc/kernels/legacy/utils.cuh csrc/kernels/legacy/internode_ll.cu
3.	Chenggang Zhao <chenggangz@deepseek.com>	ZZK <359521840@qq.com>	1 shared file deep_ep/buffers/legacy.py
4.	Chenggang Zhao <chenggangz@deepseek.com>	MayDomine <1583143678@qq.com>	1 shared file setup.py
5.	Chenggang Zhao <chenggangz@deepseek.com>	Yanfu <68212651+evadlee@users.noreply.github.com>	1 shared file deep_ep/include/deep_ep/common/comm.cuh
6.	Shangyan Zhou <sy.zhou@deepseek.com>	Yanfu <68212651+evadlee@users.noreply.github.com>	1 shared file deep_ep/include/deep_ep/common/comm.cuh
7.	Chenggang Zhao <chenggangz@deepseek.com>	Danyang Chen <140381666+danieldanyang@users.noreply.github.com>	1 shared file csrc/kernels/backend/nccl.cu
8.	Shangyan Zhou <sy.zhou@deepseek.com>	Danyang Chen <140381666+danieldanyang@users.noreply.github.com>	1 shared file csrc/kernels/backend/nccl.cu
9.	Chenggang Zhao <chenggangz@deepseek.com>	Zhenghang Ren <renzhenghang@hotmail.com>	1 shared file README.md
10.	Chenggang Zhao <chenggangz@deepseek.com>	Steffen Hirschmann <15359563+hirschsn@users.noreply.github.com>	1 shared file deep_ep/__init__.py
11.	Steffen Hirschmann <15359563+hirschsn@users.noreply.github.com>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file deep_ep/__init__.py
12.	Chenggang Zhao <chenggangz@deepseek.com>	Rui Tian <tianr22@deepseek.com>	1 shared file deep_ep/include/deep_ep/impls/engram_fetch.cuh
13.	Rui Tian <tianr22@deepseek.com>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file deep_ep/include/deep_ep/impls/engram_fetch.cuh

Most Connected Contributors

	Contributor	# connections	# commits
1.	Chenggang Zhao <chenggangz@deepseek.com>	9	5
2.	Shangyan Zhou <sy.zhou@deepseek.com>	5	3
3.	Rui Tian <tianr22@deepseek.com>	2	1
4.	Yanfu <68212651+evadlee@users.noreply.github.com>	2	1
5.	Danyang Chen <140381666+danieldanyang@users.noreply.github.com>	2	1
6.	Steffen Hirschmann <15359563+hirschsn@users.noreply.github.com>	2	1
7.	Zhenghang Ren <renzhenghang@hotmail.com>	1	1
8.	Ray Wang <853602630@qq.com>	1	1
9.	MayDomine <1583143678@qq.com>	1	1
10.	ZZK <359521840@qq.com>	1	1

C-median: 2.0

A half of the contributors has more than 2.0 connections, and a half has less than this number.

C-mean: 2.6

An average number of connections a contributor has with other contributors.

C-index: 2.0

There are 2.0 contributors with 2.0 or more connections.

20 contributors (34 commits):

#	Contributor	First Commit	Latest Commit	Commits Count	Line Churn
1.	Chenggang Zhao <chenggangz@deepseek.com>	2025-02-25	2026-09-30	7 (20%)	+40K / -34K
2.	Shangyan Zhou <sy.zhou@deepseek.com>	2025-06-13	2026-08-04	9 (26%)	+4.5K / -1.8K
3.	fzyzcjy <5236035+fzyzcjy@users.noreply.github.com>	2025-03-25	2025-11-04	1 (2%)	+185 / -17
4.	sky <fakangwang@gmail.com>	2025-05-09	2025-12-05	1 (2%)	+5 / -0
5.	Rui Tian <tianr22@deepseek.com>	2026-09-16	2026-09-16	1 (2%)	+9 / -2
6.	Yanfu <68212651+evadlee@users.noreply.github.com>	2026-08-04	2026-08-04	1 (2%)	+2 / -0
7.	Zhenghang Ren <renzhenghang@hotmail.com>	2026-06-15	2026-06-15	1 (2%)	+2 / -0
8.	Ray Wang <853602630@qq.com>	2026-05-26	2026-05-26	1 (2%)	+10 / -1
9.	MayDomine <1583143678@qq.com>	2026-05-22	2026-05-22	1 (2%)	+36 / -9
10.	Danyang Chen <140381666+danieldanyang@users.noreply.github.com>	2026-05-22	2026-05-22	1 (2%)	+4 / -1
11.	Steffen Hirschmann <15359563+hirschsn@users.noreply.github.com>	2026-05-22	2026-05-22	1 (2%)	+1 / -1
12.	ZZK <359521840@qq.com>	2026-05-22	2026-05-22	1 (2%)	+2 / -2
13.	Wu, Yutong <yutong.wu@amd.com>	2026-02-03	2026-02-03	1 (2%)	+3 / -0
14.	seth-howell <166747556+seth-howell@users.noreply.github.com>	2026-01-20	2026-01-20	1 (2%)	+25 / -3
15.	ゆり <crystalinecohomology@gmail.com>	2025-12-29	2025-12-29	1 (2%)	+1 / -1
16.	Salman Chishti <salmanmkc@github.com>	2025-12-24	2025-12-24	1 (2%)	+1 / -1
17.	Ziming Mao <ziming.mao@berkeley.edu>	2025-12-23	2025-12-23	1 (2%)	+1 / -0
18.	dongwang4096 <dowang@nvidia.com>	2025-12-04	2025-12-04	1 (2%)	+5 / -0
19.	yifeizhang-c <219273404+yifeizhang-c@users.noreply.github.com>	2025-11-05	2025-11-05	1 (2%)	+62 / -6
20.	Varun Sundar Rabindranath <varunsundar08@gmail.com>	2025-10-17	2025-10-17	1 (2%)	+2 / -0

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 365 days.

Contributor Dependencies via Shared Files

contributor dependencies 2D graph

The number on lines shows the number of same files that both persons changed in past 365 days.

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Download: Mermaid (.mmd) (open online Mermaid editor)

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- open 3D force graph
- open 2D force graph (including all files)
- open 2D force graph (including only shared files)
- open 3D force graph (including all files)
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	Contributor 1	Contributor 2	# shared files
1.	Chenggang Zhao <chenggangz@deepseek.com>	Shangyan Zhou <sy.zhou@deepseek.com>	59 shared files csrc/kernels/exception.cuh csrc/kernels/launch.cuh deep_ep/include/deep_ep/impls/dispatch.cuh csrc/kernels/ibgda_device.cuh deep_ep/include/deep_ep/impls/hybrid_dispatch.cuh csrc/kernels/intranode.cu deep_ep/include/deep_ep/impls/engram_fetch_wait.cuh tests/elastic/test_agrs.py deep_ep/include/deep_ep/impls/combine_utils.cuh deep_ep/include/deep_ep/impls/barrier.cuh csrc/kernels/api.cuh deep_ep/include/deep_ep/impls/dispatch_copy_epilogue.cuh csrc/kernels/elastic/barrier.hpp deep_ep/include/deep_ep/impls/pp_send_recv.cuh csrc/kernels/internode_ll.cu setup.py deep_ep/buffers/elastic.py csrc/kernels/utils.cuh csrc/elastic/buffer.hpp deep_ep/include/deep_ep/impls/dispatch_deterministic_prologue.cuh deep_ep/utils/event.py csrc/kernels/elastic/dispatch.hpp deep_ep/include/deep_ep/common/comm.cuh deep_ep/buffer.py csrc/indexing/main.cu deep_ep/include/deep_ep/impls/hybrid_combine.cuh tests/elastic/test_engram.py csrc/deep_ep.hpp csrc/kernels/configs.cuh csrc/kernels/buffer.cuh csrc/utils/lazy_driver.hpp tests/utils.py deep_ep/include/deep_ep/common/layout.cuh csrc/kernels/backend/nccl.cu deep_ep/include/deep_ep/common/handle.cuh csrc/jit/handle.hpp csrc/kernels/runtime.cu csrc/kernels/backend/api.cuh csrc/event.hpp tests/elastic/test_ep.py csrc/kernels/elastic/engram.hpp csrc/kernels/internode.cu deep_ep/include/deep_ep/impls/combine.cuh requirements-lint.txt csrc/kernels/layout.cu csrc/kernels/backend/symmetric.hpp tests/test_intranode.py tests/test_low_latency.py deep_ep/utils/comm.py README.md deep_ep/utils.py tests/test_internode.py deep_ep/__init__.py csrc/deep_ep.cpp pyproject.toml deep_ep/include/deep_ep/common/ptx.cuh deep_ep/include/deep_ep/common/compiled.cuh deep_ep/include/deep_ep/impls/engram_fetch.cuh csrc/config.hpp
2.	fzyzcjy <5236035+fzyzcjy@users.noreply.github.com>	Shangyan Zhou <sy.zhou@deepseek.com>	7 shared files csrc/kernels/exception.cuh format.sh setup.py deep_ep/buffer.py csrc/deep_ep.hpp tests/test_intranode.py csrc/deep_ep.cpp
3.	Chenggang Zhao <chenggangz@deepseek.com>	fzyzcjy <5236035+fzyzcjy@users.noreply.github.com>	6 shared files csrc/kernels/exception.cuh setup.py deep_ep/buffer.py csrc/deep_ep.hpp tests/test_intranode.py csrc/deep_ep.cpp
4.	Chenggang Zhao <chenggangz@deepseek.com>	yifeizhang-c <219273404+yifeizhang-c@users.noreply.github.com>	6 shared files csrc/kernels/api.cuh deep_ep/buffer.py csrc/deep_ep.hpp csrc/kernels/internode.cu tests/test_internode.py csrc/deep_ep.cpp
5.	yifeizhang-c <219273404+yifeizhang-c@users.noreply.github.com>	Shangyan Zhou <sy.zhou@deepseek.com>	6 shared files csrc/kernels/api.cuh deep_ep/buffer.py csrc/deep_ep.hpp csrc/kernels/internode.cu tests/test_internode.py csrc/deep_ep.cpp
6.	yifeizhang-c <219273404+yifeizhang-c@users.noreply.github.com>	fzyzcjy <5236035+fzyzcjy@users.noreply.github.com>	3 shared files deep_ep/buffer.py csrc/deep_ep.hpp csrc/deep_ep.cpp
7.	Chenggang Zhao <chenggangz@deepseek.com>	Ray Wang <853602630@qq.com>	2 shared files csrc/kernels/legacy/utils.cuh csrc/kernels/legacy/internode_ll.cu
8.	Chenggang Zhao <chenggangz@deepseek.com>	seth-howell <166747556+seth-howell@users.noreply.github.com>	2 shared files csrc/kernels/ibgda_device.cuh csrc/kernels/configs.cuh
9.	seth-howell <166747556+seth-howell@users.noreply.github.com>	Shangyan Zhou <sy.zhou@deepseek.com>	2 shared files csrc/kernels/ibgda_device.cuh csrc/kernels/configs.cuh
10.	Chenggang Zhao <chenggangz@deepseek.com>	ZZK <359521840@qq.com>	1 shared file deep_ep/buffers/legacy.py
11.	Chenggang Zhao <chenggangz@deepseek.com>	Varun Sundar Rabindranath <varunsundar08@gmail.com>	1 shared file csrc/kernels/launch.cuh
12.	Varun Sundar Rabindranath <varunsundar08@gmail.com>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file csrc/kernels/launch.cuh
13.	Chenggang Zhao <chenggangz@deepseek.com>	ゆり <crystalinecohomology@gmail.com>	1 shared file third-party/README.md
14.	Chenggang Zhao <chenggangz@deepseek.com>	MayDomine <1583143678@qq.com>	1 shared file setup.py
15.	MayDomine <1583143678@qq.com>	fzyzcjy <5236035+fzyzcjy@users.noreply.github.com>	1 shared file setup.py
16.	MayDomine <1583143678@qq.com>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file setup.py
17.	Chenggang Zhao <chenggangz@deepseek.com>	Yanfu <68212651+evadlee@users.noreply.github.com>	1 shared file deep_ep/include/deep_ep/common/comm.cuh
18.	Shangyan Zhou <sy.zhou@deepseek.com>	Yanfu <68212651+evadlee@users.noreply.github.com>	1 shared file deep_ep/include/deep_ep/common/comm.cuh
19.	Salman Chishti <salmanmkc@github.com>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file .github/workflows/format.yml
20.	Chenggang Zhao <chenggangz@deepseek.com>	Danyang Chen <140381666+danieldanyang@users.noreply.github.com>	1 shared file csrc/kernels/backend/nccl.cu
21.	Shangyan Zhou <sy.zhou@deepseek.com>	Danyang Chen <140381666+danieldanyang@users.noreply.github.com>	1 shared file csrc/kernels/backend/nccl.cu
22.	Chenggang Zhao <chenggangz@deepseek.com>	Zhenghang Ren <renzhenghang@hotmail.com>	1 shared file README.md
23.	Chenggang Zhao <chenggangz@deepseek.com>	Wu, Yutong <yutong.wu@amd.com>	1 shared file README.md
24.	Chenggang Zhao <chenggangz@deepseek.com>	Ziming Mao <ziming.mao@berkeley.edu>	1 shared file README.md
25.	Chenggang Zhao <chenggangz@deepseek.com>	sky <fakangwang@gmail.com>	1 shared file README.md
26.	Chenggang Zhao <chenggangz@deepseek.com>	dongwang4096 <dowang@nvidia.com>	1 shared file README.md
27.	Zhenghang Ren <renzhenghang@hotmail.com>	Wu, Yutong <yutong.wu@amd.com>	1 shared file README.md
28.	Zhenghang Ren <renzhenghang@hotmail.com>	Ziming Mao <ziming.mao@berkeley.edu>	1 shared file README.md
29.	Zhenghang Ren <renzhenghang@hotmail.com>	sky <fakangwang@gmail.com>	1 shared file README.md
30.	Zhenghang Ren <renzhenghang@hotmail.com>	dongwang4096 <dowang@nvidia.com>	1 shared file README.md
31.	Zhenghang Ren <renzhenghang@hotmail.com>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file README.md
32.	Wu, Yutong <yutong.wu@amd.com>	Ziming Mao <ziming.mao@berkeley.edu>	1 shared file README.md
33.	Wu, Yutong <yutong.wu@amd.com>	sky <fakangwang@gmail.com>	1 shared file README.md
34.	Wu, Yutong <yutong.wu@amd.com>	dongwang4096 <dowang@nvidia.com>	1 shared file README.md
35.	Wu, Yutong <yutong.wu@amd.com>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file README.md
36.	Ziming Mao <ziming.mao@berkeley.edu>	sky <fakangwang@gmail.com>	1 shared file README.md
37.	Ziming Mao <ziming.mao@berkeley.edu>	dongwang4096 <dowang@nvidia.com>	1 shared file README.md
38.	Ziming Mao <ziming.mao@berkeley.edu>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file README.md
39.	sky <fakangwang@gmail.com>	dongwang4096 <dowang@nvidia.com>	1 shared file README.md
40.	sky <fakangwang@gmail.com>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file README.md
41.	dongwang4096 <dowang@nvidia.com>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file README.md
42.	Chenggang Zhao <chenggangz@deepseek.com>	Steffen Hirschmann <15359563+hirschsn@users.noreply.github.com>	1 shared file deep_ep/__init__.py
43.	Steffen Hirschmann <15359563+hirschsn@users.noreply.github.com>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file deep_ep/__init__.py
44.	Chenggang Zhao <chenggangz@deepseek.com>	Rui Tian <tianr22@deepseek.com>	1 shared file deep_ep/include/deep_ep/impls/engram_fetch.cuh
45.	Rui Tian <tianr22@deepseek.com>	Shangyan Zhou <sy.zhou@deepseek.com>	1 shared file deep_ep/include/deep_ep/impls/engram_fetch.cuh

Most Connected Contributors

	Contributor	# connections	# commits
1.	Chenggang Zhao <chenggangz@deepseek.com>	18	7
2.	Shangyan Zhou <sy.zhou@deepseek.com>	16	9
3.	sky <fakangwang@gmail.com>	6	1
4.	Zhenghang Ren <renzhenghang@hotmail.com>	6	1
5.	Wu, Yutong <yutong.wu@amd.com>	6	1
6.	Ziming Mao <ziming.mao@berkeley.edu>	6	1
7.	dongwang4096 <dowang@nvidia.com>	6	1
8.	fzyzcjy <5236035+fzyzcjy@users.noreply.github.com>	4	1
9.	MayDomine <1583143678@qq.com>	3	1
10.	yifeizhang-c <219273404+yifeizhang-c@users.noreply.github.com>	3	1
11.	Rui Tian <tianr22@deepseek.com>	2	1
12.	Yanfu <68212651+evadlee@users.noreply.github.com>	2	1
13.	Danyang Chen <140381666+danieldanyang@users.noreply.github.com>	2	1
14.	Steffen Hirschmann <15359563+hirschsn@users.noreply.github.com>	2	1
15.	seth-howell <166747556+seth-howell@users.noreply.github.com>	2	1
16.	Varun Sundar Rabindranath <varunsundar08@gmail.com>	2	1
17.	Ray Wang <853602630@qq.com>	1	1
18.	ZZK <359521840@qq.com>	1	1
19.	ゆり <crystalinecohomology@gmail.com>	1	1
20.	Salman Chishti <salmanmkc@github.com>	1	1

C-median: 2.5

A half of the contributors has more than 2.5 connections, and a half has less than this number.

C-mean: 4.5

An average number of connections a contributor has with other contributors.

C-index: 6.0

There are 6.0 contributors with 6.0 or more connections.

Contributors' details...